Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-11-06 Hits: Popular:AG11 battery
1.2V Ni-MH battery is the key technology of electric vehicles
1.2V Ni-MH battery required for pure electric vehicles The functional indicators and economic indicators of 1.2V Ni-MH battery for electric vehicles include:
(1) Safety;
(2) Specific energy;
(3) Specific power;
(4) Life;
(5) Cycle price;
(6) Energy conversion efficiency.
These factors directly determine the applicability and economy of electric vehicles. Supercapacitor The advantages of supercapacitor are high mass-to-power ratio and long cycle life. The disadvantages are low mass-to-energy ratio and high purchase price. However, the cycle life is as long as 500,000 to 1 million times, so the price of a single cycle is not high. It can be connected in parallel with lead-acid batteries and energy-type lithium-ion batteries to form a power supply system with excellent performance. Lead-acid battery The production technology of lead-acid battery is mature, with good safety, low price, and waste batteries are easy to recycle.
In recent years, through new technologies, its shortcomings such as low specific energy, short cycle life, acid mist during charging, and possible lead pollution in production are being overcome, and various indicators have been greatly improved. It can not only be better used as a power source for electric bicycles and electric motorcycles, but also play a good role in electric vehicles. Lithium-ion batteries with lithium iron phosphate as the positive electrode have good comprehensive performance: high safety, no expensive raw materials, no harmful elements, a cycle life of up to 2,000 times, and have overcome the disadvantage of low conductivity. The mass specific energy of energy-type batteries can reach 120Wh/kg, and when used in parallel with supercapacitors, it can form a power source with comprehensive performance. The mass specific energy of power-type batteries is also 70-80Wh/kg, which can be used alone without parallel supercapacitors.
Lithium-ion batteries with lithium titanate as the negative electrode have very little volume change during charge-discharge, which ensures the stability of the motor mechanism and the long life of the battery; the lithium titanate electrode potential is relatively high (1.5V relative to the Li+/Li electrode), and lithium dendrites can be generated when the battery is charged, ensuring the high safety of the battery.
However, due to the high electrode potential of lithium titanate, even if it is paired with the lithium manganate positive electrode with a higher electrode potential, the battery voltage is only about 2.2V, so the specific energy of the battery is only about 50-60Wh/kg. Even so, the outstanding advantages of this battery in terms of high safety and long life are unmatched by other batteries.
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