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What are Li-Ion Batteries?

发布者:奥科新能源      时间:2019-07-03
Li-ion batteries are rechargeable batteries that use lithium ions which move from a negative electrode to a positive electrode. They are popular batteries for use in consumer electronics because they provide good energy density, no memory effect, and a slow loss of charge when not in use. These batteries come in a wide variety of shapes and sizes. In addition, compared to lead-acid batteries, Li-ion batteries are lighter and provide a higher open circuit voltage, which allows for power transfer at lower currents. These batteries have the following characteristics:
  1. Enhanced safety
  2. Exceptional low temperature performance
  3. Good cycle life
  4. High abuse tolerance*
  5. High capacity
  6. High rate capability
  7. High temperature performance  

*Applies to LiFEPO4 only, does not apply to Cobalt Oxide or Lithium Polymer

The term "Li-ion" battery is a general term like the term "car" and refers to many different types of Lithium.  There are many different chemistries for Li-Ion batteries including LiCoO2 (cylindrical cell), LiPo, and LiFePO4 (cylindrical/prismatic cell). AUKPOWER currently is focusing on design, manufacturing, and marketing of LiFePO4 (LFP) batteries.   

The different types of Li-ion batteries have different characteristics. Typically when the term "Li-ion" is used in a product description what is being sold may be either LiCoO2 (Cobalt Oxide) or LiPo (Lithium Polymer) unless LiFePO4 (Lithium Iron Phosphate) is specifically named. This is the rule of thumb because LiCoO2 and LiPo are the most common types of Lithium. The LiCoO2 in particular is cheaper and has a high power density but as a trade off has drastically shortened service life and is chemically and thermally unstable. Within this lineup LiFePO4 is unique for its aforementioned performance benefits. Compared with the older LiCoO2, LiPo and other chemistry such as AGM, SLA and NiCad, the current state-of-the-art LiFePO4 is essentially a new and entirely different chemistry unique unto itself.