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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:2023-09-18 Hits: Popular:AG11 battery
Lithium ion batteries refer to batteries made of four main materials and shells: positive electrode, negative electrode, separator, and electrolyte. The positive and negative electrode materials must be able to reversibly embed and remove lithium ions, the separator must be lithium ion conductive and electronic insulated, and the electrolyte must be a lithium ion solution.
Usually, a transition element undergoes an oxidation-reduction reaction in the positive electrode material, while metallic lithium and carbon negative electrodes undergo an oxidation-reduction reaction in metallic lithium. During the charging and discharging process, lithium ions transfer back and forth between the positive and negative electrodes inside the battery, and the battery moves in the external circuit. Some people vividly refer to this lithium-ion transfer process as a rocking chair, while lithium-ion batteries are referred to as rocking chair batteries.
The positive electrode material of lithium-ion batteries generally uses lithium embedded transition metal oxides, such as Ni, Co, and Mn lithium embedded oxides. Negative electrode materials should choose lithium intercalation compounds with potentials as close as possible to metallic lithium, such as various carbon materials, SnO, SnO2, silicon alloys, etc.
Electrolytes commonly use LiPF6 solutions, with organic solutes such as ethylene carbonate (EC), propylene carbonate (PC), and low-density ethylene carbonate (DEC); The diaphragm is mainly made of porous composite membranes made of olefin polymers; The shell materials include steel, aluminum, plastic, aluminum plastic film, etc.
Typical parameters of lithium-ion batteries include capacity, internal resistance, and voltage; The characteristic parameters of lithium-ion batteries include cycle life, discharge platform, self discharge rate, temperature performance, storage performance, etc. The safety tests for lithium-ion batteries include overcharging, short circuit, puncture, drop, immersion, low voltage, vibration, etc.
Lithium ion batteries are relatively delicate, and their charging and discharging are a multivariable, nonlinear and complex electrochemical process. If the charging and discharging conditions cannot be met, it is easy to experience events such as rapid decline in lifespan, performance degradation, ignition, explosion, etc. because lithium-ion batteries are sensitive to temperature, voltage, current, etc.
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