There five indicators to measure battery performance
Secondary batteries is known as rechargeable batteries or battery,such as Canon bp-522 battery ,measuring the performance mainly depends on secondary battery voltage, capacity, energy, power, cycle life of these five areas.
Voltage including charge and discharge the battery in the theory, the working battery voltage, battery charge voltage and battery termination voltage. theoretical discharge voltage and the theoretical charge voltage is same ,and they are equal to the battery open circuit voltage,like the battery for Canon bp-711 .
The battery voltage is the actual battery discharge voltage ,it is relevant with the battery discharge method, using temperature, charge and discharge times and others(it also includes whether it is famous battery,such as Samsung sb-l110 battery or not ) .The battery charging voltage is greater than open-circuit voltage, the greater charge current is ,the voltage higher , the greater the battery heat ,the temperature of the battery during charging higher.
Termination of the battery voltage is that the the voltage of battery is not appropriate to continue to discharge down to the minimum operating voltage in the discharge process,.
Battery capacity refers to a certain discharge conditions, you can get electricity from the battery, that battery can release energy. Battery capacity is divided into theoretical capacity, practical capacity. The battery’s theoretical capacity is calculated in accordance with the electrochemical reaction from the capacity. Actual capacity refers to a certain discharge conditions, the battery can release the actual amount of power,for one thing,the Canon bp-911 battery.
The battery capacity is defined as more than a certain discharge conditions,obtained battery power from the unit mass (volume) , that is,the battery can release energy.
The energy of the battery is the output of electricity can do work outside in certain discharging conditions , As the active substance can not be fully exploited, and the battery voltage is always less than the electromotive force, take the Jvc bn-v408 battery,so the actual energy of the battery is always less than the theoretical energy.
The battery specific energy (energy density) is the output energy of unit mass (volume) batteries , namely, the volume ratio energyor the mass ratio energy. the actual output energy is the energy of the battery ratio battery quality (weight) or volume .
The battery power is the battery the battery output battery power per unit time in a certain discharge conditions, unit is for the W or kW. Battery power is the power unit mass (volume) cand output ,the unit is for the W / kg or W / l.
Lithium-ion battery has the following advantages:
- High voltage, voltage of single battery go up to 3.6-3.9V,and it is 3 times than a Ni-Cd, Ni-H batteries ,such as Dell inspiron 6000 battery .
- Larger specific energy , at present real energy is 100-125Wh/kg and 240-300Wh / L (2 times higher than Ni-Cd, 1.5 times higher than Ni-MH), the future, as technological development, specific energy up to 150Wh/kg and 400 Wh / L
- Long cycle life, in general, Lithium-ion battery can reach more than 500 times, or even 1000 times or more. For a small electrical current discharge, the battery will double the lifespan of electrical appliances competitiveness.
- Safety performance is good, and pollution-free, no memory effect. like the Dell inspiron 6400 battery . As the predecessor of Li-ion batteries, the formation of lithium dendrite easy to short-circuit reduce its application areas: Li-ion does not contain cadmium, lead, mercury and other elements of the environment pollution: Some processes (such as sintered) and Ni-Cd batteries there is a major drawback for the “memory effect”, seriously hindered the use of batteries, but Li-ion does not exist at this problem.
- Self-discharge is small, after full of electricity at room temperature Lithium-ion battery is storaged for a month ,the self-discharging rate is about 10%, much lower than Ni-Cd of 25-30%, Ni, MH 30-35%.
- Can quickly charge and discharge,for one thing ,the Fujifilm np-40 . 1C charging capacity can reach more than 80% of the nominal capacity.
- Operating temperature range is high, operating temperature is -25 ~ 45 ° C, with the electrolyte and the positive improvements, it is hoped to broaden the -40 ~ 70 ° C.
Lithium-ion batteries also exist some disadvantages, such as:
- Battery costs are higher.take the Fujifilm np-100 battery for example. it mainly reflected in the price of LiCoO2 cathode materials for high-(Co resources to small), electrolyte purification system difficult.
- Not high-current discharge. As the organic electrolyte system, and other reasons, the battery internal resistance is big ,compared to other type of batteries. Therefore, I demand a smaller discharge current density, the discharge current at 0.5C below normal, only suitable for small and medium-current electrical use.
- Iit need to protect line control.
- Overcharge protection: Battery over charging would undermine the positive structure, for one thing ,the Dell inspiron e1505 battery . which affects the performance and life; the same time, the overcharge to the electrolyte decomposition, excessive internal pressure caused by leakage and other problems; and therefore must be under constant pressure 4.1V-4.2V charge;
- Over-discharge protection: over-discharge recovery of active substances will cause difficulties, they also need protection circuit control.
Tags: Dell, inspiron 6000 battery, inspiron 6400 battery
- To buy cell phone Dell inspiron 630m battery in the formal business units as far as possible , and at the time of purchase requests issued merchants marked with the battery brand, model, serial number of the invoice. In this way, Once a battery purchased counterfeit products, you can negotiate accordingly to the relevant departments to solve.
- Domestic battery clearly marked with product identification applications in Chinese name and address and battery name, model, rated capacity, rated voltage, manufacturing date, warning signs and so on. If the product ID does not meet standards, such as cell phone Dell inspiron 6400 battery your best not to buy.
- Testing whether mobile phone battery manufacturers anti-counterfeiting labels.
- Each with original equipment batteries have a unique serial number, that is, you are in the selection of the battery, if the Dell inspiron 700m battery was found a few marked with the same serial number, you can conclude that these products are fake.
- Original nickel-metal hydride batteries are precision plastic laminated mold, and is a shape, appearance and tidy, no burr, the battery should not have to open the edge of the scene.
- Lithium-ion Dell inspiron 700m battery fully charged before use of time is about 1.5 times that of NiMH batteries are nickel-cadmium battery 3.0 times. Therefore, the battery capacity the same circumstances, the lithium-ion battery than the nickel-metal hydride batteries smaller and lighter.
- Observe the distinction between authenticity of the package. Original parts used in all heat seal technology, a one-time sealed package, non-original parts are usually not packaged or only simple packaging.
- see plastic surfaces and plastic materials. Genuine battery wear uniform surface, using the PC material, no embrittlement phenomenon; counterfeit Dell inspiron 710m series battery without wear or too rough, using a renewable material, easy to embrittlement.
- Original battery shell material strong, difficult to damage, generally means difficult to open the battery. For the original battery, its battery surface color texture clear, uniform, clean, no obvious scratches and damage
- Battery metal contacts the color may be different. Original color of the Dell gd761 side contact metal deep, counterfeit batteries partial light metal contacts. And the original batteries are not reflective metal contacts. This can be seen in the lighting, fake batteries are reflective with a high degree.
- Loaded onto cell phones and cell phone to see the degree of fit with original equipment Dell inspiron 710m battery and fuselage commissure very good, and the colors are basic and there is no significant difference between the mobile phone.
For example stickers hidden under the ramp NOKIA printed word is one trick. Flawless is a clear and original products; eclipse counterfeit products. If you look closely, it may find manufacturer’s name. For example, batteries for Dell inspiron 640m battery and its anti-counterfeiting trademarks are diamond-shaped, and whether from any point of view, can be flashing a three-dimensional effect, while Dell, Original and printing and clear, then it is genuine. On the contrary, once the color of dark, three-dimensional feeling inadequate, vague words, there may be fakes.
Tags: Dell, inspiron 630m battery, inspiron 640m battery
Lithium-ion Laptop battery safety
Standards should be appropriate means to seek and establish product safety and performance of the best combination, if it is not simply focus on safety, of course, the more stringent requirements as possible, but the overall technical level of the product restrictions, the better the security often means more poor electrical performance levels canon eos 350d vertical-grip.
Lithium-ion battery performance level is the most advanced and fastest growing commercial chemical power, and become mobile phones, laptop computers, digital cameras and other high-end portable consumer electronics products matching the power of choice. But its structure and principles of weakness, frequent occurrence in recent years, lithium-ion battery explosion wounding or recall of products due to security risks and other incidents, lithium-ion canon eos 400d vertical-grip safety has become a hot topic in national life, with the attendant safety standards for lithium-ion battery and related work has also become the focus of attention of various parties.
China Li-ion batteries to be coordination between the various standards
Current domestic and international basic safety standards for lithium-ion batteries are in line with detection-based standard, that standard provides short-circuit, over canon eos 450d vertical-grip charge, over discharge, vibration, shock, extrusion, impact (drop), hot-box, low atmospheric pressure, temperature cycling and other electrical , mechanical and environmental aspects of the pilot project, to simulate the battery in normal use and foreseeable misuse of the time of application, to ensure that products in these cases, security. This standard form has the advantage of clear criteria, operability is good, just for the finished battery to carry out laboratory testing to determine whether you can meet the standards, the disadvantage is that can not be fully effective in protecting the product quality and reliability, because the security of a product performance is an integral aspect of product design and manufacturing processes formed and established, the current standard of evaluation subjects with this biased, in addition to safety tests are destructive tests fujitsu lifebook c2210 battery, can only be conducted using samples taken, this method itself There are also a certain degree of risk probability.
Contrast to the standard can be seen at home and abroad, China’s safety standards for lithium-ion batteries lack of overall planning, basic fragmented. On the one hand between the state and industry standards of 2, as well as a lack of coordination between various industry standards, there is a certain cross-standard objects fujitsu lifebook c2220 battery, repeating the other hand, there is no uniform standard of guiding ideology, both simple safety standards, including the electrical properties have , environmental performance and safety performance applicable to all the demands of the general norms such as the nature of standards. In contrast, the same organization within the system of foreign ideas and standards in the work of inter-relations are more unified, coordinated, such as the IEC for the safety of their products a separate standard-setting, other criteria such as product specification electrical properties of the total, and other requirements, safety requirements direct reference to safety standards; IEEE are developed for different purposes, including security requirements, respectively, including general specifications of products fujitsu lifebook c2230 battery.
Tags: battery, blog, business, internet, laptop, life, news, notebook, replacement, world
The so-called direct methanol fuel Dell vostro 1500 battery (Direct Methanol Fuel Cell) belongs to the proton exchange membrane fuel cell (PEMFC) in one of the categories, the direct use of aqueous solutions of methanol as fuel and steam supply source, through the restructuring of devices without having to re-methanol, gasoline and and then remove the hydrogen such as natural gas for power generation. Compared to proton exchange membrane fuel akku (PEMFC), direct methanol fuel cell (DMFC) low temperature of Health electricity, fuel components and battery low-risk features such as simple structure, so that direct methanol fuel laptop battery (DMFC) portable electronics applications may be mainstream.
Direct methanol fuel cell is a proton exchange membrane fuel cell as a variant of the use of methanol directly rather Needless to pre-restructuring. Methanol at the anode into carbon dioxide, proton and electron, as the standard proton exchange membrane fuel Dell vostro 1400 battery , as protons through the proton exchange membrane and oxygen in the cathode reaction of electrons through the external circuit to reach the cathode, and doing work.
The expectations of the Dell latitude d830 battery operating temperature is 120 ℃, it is slightly higher than the standard proton exchange membrane fuel cell, its efficiency is about 40%. The disadvantage is that when low-temperature methanol is converted to hydrogen and carbon dioxide than when the conventional proton exchange membrane fuel cells need more platinum catalyst. However, this increase in costs can be due to easy access to liquid fuels and will be able to work on the revitalization Needless to dwarfs. The use of direct methanol fuel Dell latitude d820 battery technology is still in its early years of development, it has successfully demonstrated can be used as mobile phones and laptop computers power supply, the future for a specific end-user also has the potential to use.
Tags: Dell, vostro 1400 battery, vostro 1500 battery
First of all, repeatedly charging and discharging has basically no damage to Nikon en-el3 battery due to more active lithium element and no memory effect, so with the manufacture of lithium batteries can be repeated charge and discharge. We are now big Most people (90% or more) way of thinking is also retained in a few years ago the popular shadow of nickel-metal hydride batteries, because the nickel element in itself is not active, and the element has a memory of electronic effects, namely: remember the last red depth of discharge! So, if it is not charging the laptop battery runs out or the long (fully stimulate the nickel element – its not active), the charge can not achieve the best results, it is generally charge their time at night or how many hours!
We are now using a lithium element, the element can not exist independently in nature can only exist in the compounds, in the periodic table, the lithium half-life is very short, and no memory effect, so the process of lithium Nikon en-el8 batteries in use electrical impulse can not be a long and full discharge, owing to the charge make their own very active element in the electronic state of saturation occurs strenuous exercise, while production of explosive mix, namely: charge time is best for the 2-4 hours, preferably not more than 4 hours (more active elements, charge to stimulate fast akku charging time is correspondingly shorter, even the first charge is only 2 hours to 4 hours, due to lithium has no active elements, and Instead, on the impact of lithium long charging elements in the process of charging and discharging the level of activity).
Followed by lithium battery charging process, we will find the Casio np-100 battery is full at least at this time like one half an hour in charging process, because firstly voltage impulse charging is completed, then the electronic charge is finished slowly about half an hour! When electricity is best not to completely run out of recharge, because ran out of lithium element required by the needs of the reverse reaction of compounds not have enough fully charged, resulting in cell capacitance decreases!
So to sum up, cell phone lithium battery for Jvc bn-vf808 is the modern invention of the humanization of the batteries, it is, and notebook computers \ MP3 and other electronic products, batteries are the same, basically do not bother charging and discharging
- Charging time 2-4 hours (not too long, a long time would seriously affect the Fujifilm np-120 battery life and dangerous)
- The first charge can not for a long time, and usually charge the same as you can (and do not enter the nickel-metal hydride batteries Mistakes)
- Can not be entirely optical (fully depleted, the battery life also have serious impact)
A lithium Casio np-30 battery can deeply discharge cycles for a few times, more very bad 4. The use of the process, see the fast there was no electricity, and perception of not enough of the red, will be full of the best, it does not matter washed dissatisfied !
Delkin new patent batteries
United States manufacturer sony np-fa70 battery of advanced digital equipment, Delkin (del DRC) has introduced three patented technologies add AA batteries, and said the new battery is more for professional photographers demand. With the new patented battery technology, was named Delkin Power series, the new battery storage capacity increased significantly, can bring a lot of benefits for photographers. The new product line includes 2900mAh rechargeable battery, plus AA / AAA charger and sony np-fa50 battery, also provides a disposable alkaline batteries.
Delkin Power Series Battery
All Delkin Power product warranty period of two years, IWS, as detailed in the company’s Web site http://www.ecsem.net. Including charger including 4 AA rechargeable batteries for 44.99 U.S. dollars. Delkin Devices is one of the top California high-end digital cameras sony np-f970 battery, storage equipment and accessories manufacturer, located in San Diego, California.
Japanese invent a new automotive fuel-cell technology
September 14, Japan’s Daihatsu Motor Co. in Tokyo, showing the staff of the new sony np-f750 battery automotive fuel cell model.
This fuel cell uses a liquid used to make rocket fuel hydrazine hydrate as fuel and power output effects can be comparable to hydrogen fuel cells, improving the traditional use of methanol fuel cells and other liquid fuels arising from the problem of insufficient power sony np-f730 battery output.
Tags: blog, business, game, internet, interview, life, news, tips
- Nickel-cadmium batteries (Ni-Cd)
- Nickel-metal hydride batteries (Ni-MH)
- Li-ion battery
- Fuel Cell (Fuel Cell)
It is used in laptop batteries for Sony np-fa50 in the veteran, but because it has a serious memory effect as well as the anode material used in nickel (Ni) on the environment will be toxic and cause pollution, so it is quickly was despise laptop, and replaced by a more superior nickel-metal hydride batteries.
the structural principle of nickel-metal hydride Sony np-f750 batteries is same with nickel-cadmium batteries , but it replaced the cathode by performance better, more environmentally friendly non-toxic nickel – metal hydride materials. Although only a small change, but it has brought a dramatic increase in performance. It also has an unmatched to make the advantages of nickel-cadmium battery is memory effect was not obvious, so that so that we no longer have the memory effect for that nasty trouble and become more user-friendly. Although the performance of nickel-metal hydride batteries for Sony np-fa70 are very good, but with technological advances, it is lighter in weight and a higher energy density lithium batteries replaced, become the laptop battery in the history of deadwood.
Many people think that lithium Sony np-fc11 battery means that we are now commonly used in lithium-polymer battery, in fact, lithium batteries, including lithium metal-ion battery (Li-MO2) and lithium-polymer battery (Li-ion) are two. Because Li-MO2 cells to enter the market in 1989, caught fire when the explosion occurred while the die, so it will soon disappear from people’s sight, replaced by a safer lithium-polymer battery. It is light weight, in the same capacity under its nickel-metal hydride battery for Sony np-ff50 weighs only about 1 / 2, so it is fast becoming the new darling of mobile portable devices have been used in most notebook computers, is now the backbone of notebook batteries.
Fuel cells are the future of laptop battery star, it has many types, including proton exchange membrane fuel cell (PEM), alkaline fuel cell (AFC) and solid oxide fuel cell (SOFC) and many other However, due to the fuel cell start-up time and operating temperature and other reasons in fact suitable for notebook computer use only the fuel cell proton exchange membrane fuel cell (PEM). PEM fuel cells for Sony np-ff70 using methanol fuel, from the positive and negative electrodes composed of the principle of its power generation is the result of the methanol, after re-enter the negative hydrogen and oxygen enter the cathode, through the catalyst, hydrogen atoms into protons and electrons, by different paths into the cathode, e-cycle to produce electricity through an internal, proton through the electrolyte to achieve positive, combined with oxygen to produce water and electrical and heat.
The experts agreed that restricting the commercial application of fuel cells, the biggest factor is the fuel Sony np-fh70 cell to use the metal platinum (Pt) or platinum as catalyst to make the cost of production has been high, the current production cost of the fuel cell 500 ~ 1000 USD / kW. Research shows that only when the fuel cell production costs fell to 50 U.S.dollars / kilowatt level can be truly accepted by consumers. The high cost of fuel cells is mainly due to mass production has not been formed, once entered mass production stage, the price of fuel akku will certainly be greatly reduced.
To know more,please click: flixya soulcast blurty livejournal xanga desiblogz.com/
Automotive Industry and Semiconductor Industry
“Rigidly adhere to silicon will not work nikon en-el8 battery.” University of Electro-Communications and Systems Engineering, Professor Xincheng one in the electronic Information Technology Industries Association (JEITA) organized the seminar “Electronic equipment and electronic components related to trends,” on the, on August 31, 2007 to do a paper entitled “Current Situation and automotive electronics Future Trends “speech.
Xincheng one had been in software nikon en-el9 battery development for the automotive manufacturers to provide support. The speech can be said that a representative of the new car manufacturers Cheng, and most of the audience – semiconductor manufacturers raised the expectations of developing automotive electronics.
Cheng said the new one, the requirements of the automotive semiconductor properties, the final analysis, heat, vibration, electromagnetic noise tolerance performance requirements. “For example, the Lexus LS460 integrated 100 micro-controllers, more than 100 motor, and through CAN (Controller Area Network) to connect. Of course, the car will be hot everywhere olympus battery and olympus blm-1 battery, producing electromagnetic noise. In this case, the semiconductor Only +70 ℃ heat resistance is not enough. electromagnetic interference must also be reduced. Of course, also need to drive in bad road conditions and will not damage the anti-vibration. ”
Cheng said the new one in order to meet these requirements, need to use silicon (Si) semiconductor materials, outside the development. “It’s always rigidly adhere to silicon is not acceptable. Hope that we actively develop silicon carbide (SiC), diamond and other semiconductor. This is evident from a vehicle’s interior trend of high-voltage power sony vgp-bps9a/b battery supply is also necessary to look at.”
Automotive electronics “hot spots” is a pilot monitoring
Xincheng a speech described the automotive industry is currently developing a number of full-vehicle semiconductor application projects. “In the monitoring, vehicle monitoring devices, observation and development has come to an end. Now is the driver to monitor hot sony vgp-bps9 battery spots.” At present, the use of cameras filming the pilot of the face, the eyelid is closed when you continue to use cold, sleepy sleepy to prevent the elimination system, the pupil can not be confirmed with the camera focus automatically when deceleration stop to prevent drink driving systems are under development (see the stations report).
In addition, the new Seiichi also traveling through the analysis of the types of voice recognition used tires, be sent to the control system to adjust the control mode of the system, and the use of the vehicle in front of the road status data and inform the master sony vgp-bps8 battery behind the vehicle system as a “hot spot” areas were introduced.
Tags: Automotive Industry, battery information, internet, life, news, Semiconductor Industry
The fuel mobile phone battery
As mobile nikon en-el4 phones more and more functions, such as watching movies, GPS navigation, game, but when such do these operations consume a large amount of power, configuration, of course, thousands mA battery can extend the use of time, but when outdoors is very is difficult to recharge, so solar power for mobile phones have been concerned about, this is also a number of scientific personnel and we are looking for. From the application of Germany’s largest scientific institutions – Fraunhofer recently announced they are developing a mobile phone and other telecommunication equipment for supplying electricity to “micro-power engineering system solutions.”
Solve the “power shortage” is another sought-after suffering fuel mobile phone nikon en-el4a battery solar power
Currently on the market such as notebook computers, MP3 players, mobile phones and other digital products in the common shortcomings of operation time is too short, especially in the watch video clips and other operations more easily electricity consumption. Fraunhofer research institutes indicated that they had invited to the industry’s technical experts participate in their Solar Energy Systems ISE Program (solar system power supply scheme), which aims to develop a higher concentration of power in order to extend the hours of operation, at the forthcoming Hanover Trade Fair the exhibition showcasing their micro-fuel cells.
For scientists, the use of micro fuel cells as a chemical energy conversion has been something olympus li-10b they’ve been dreaming, Fraunhofer micro-fuel cells using polymer and metal thin film made of three connected single cells can be generated around 1.5V The voltage, enough to replace the traditional button batteries. In addition, staff has developed a few mA and can produce hundreds of watts of power, micro fuel cell systems.
On the other hand, Fraunhofer is also developing other use of fuel-powered methods, which way is by adding water, using sodium boron hydride to produce the hydrogen required to power the fuel. In addition, by using liquid methanol directly into hydrogen ways to produce olympus li-12b electricity.
Fraunhofer’s fuel plans also include the use of light, heat, vibration to produce energy, in the mobile phone or other communication products built-in thermoelectric devices can be put into the user’s manual, outside the micro-thermal energy conversion to electricity. In addition, Fraunhofer is also developing a flexible, portable power, in the PDA handheld, notebook can be significant savings in the use of space, is also more convenient to carry.
Fraunhofer samsung sb-lsm160 research institutes in the relevant field, said the future of digital products will be integrated intelligent power management system. The system can be put to the thermal sensor, the light converted into electricity and save, in peacetime, cell phone batteries can be used for normal power, battery power consumption and once finished, the intelligent power management system can be powered for digital camera battery.
Tags: battery, business, fuel, internet, life, mobile, news, phone, The, useful
0