Share the development process of lithium batteries

　　1. In the 1970s, Exxon's M S. Whittingham uses titanium sulfide as the positive material and lithium metal as the negative material to produce the first lithium-ion battery.

　　2. In 1980, J Goodenough discovered that lithium cobalt oxide can be used as a positive material for lithium-ion batteries.

　　3. In 1982, R R. Agarwal and J.R. Selman found that lithium ions have the characteristic of embedding into graphite, and this process is fast and reversible. At the same time, the hidden dangers of lithium batteries made of metallic lithium have attracted much attention, so people are trying to use the characteristics of lithium ions embedded in graphite to make rechargeable batteries. The available lithium-ion graphite battery has been successfully developed by Bell Laboratories.

　　4. 1983 M Thackeray, J Goodenough et al. found that manganese spinel is an excellent positive material with low cost, stability, and excellent conductivity and lithium conductivity. Its decomposition temperature is high and its oxidation resistance is much lower than that of lithium cobalt oxide. Even in the event of short circuits and overcharging, it can avoid the danger of combustion and explosion.

　　5. In 1989, A Manthiram and J Goodenough found that using polymeric anions for positive ji will generate higher voltage.

　　6. In 1991, Sony released commercial lithium-ion batteries. Subsequently, lithium-ion batteries revolutionized the appearance of consumer electronics products.

　　7. In 1996, Padhi and Goodenough discovered that phosphates with olivine structures, such as lithium iron phosphate (LiFePO4), were superior to traditional orthophosphate materials and have become the mainstream orthophosphate materials.

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