The development process of lithium battery
1, 1970s Exxon's M.S. Whittingham used titanium sulfide as the cathode material and lithium metal as the negative material to make the first lithium battery.
2, 1980, J. Goodenough found that lithium cobaltate can be used as a lithium-ion battery cathode material.
3, 1982, the Illinois Institute of Technology (the Illinois Institute of Technology
Technology) R.R. Agarwal and J.R. Selman discovered that lithium ions have the property of being embedded in graphite, and this process is fast and reversible. At the same time, there were concerns about the safety of lithium batteries made from lithium metal, so attempts were made to use the property of lithium ions embedded in graphite to make rechargeable batteries. The first available lithium ion graphite electrode was successfully trialed by Bell Labs.
4, 1983 M. Thackeray, J. Goodenough and others found that manganese spinel is an excellent cathode material with low cost, stability and excellent conductivity and lithium conductivity. Its decomposition temperature is high, and oxidation is much lower than lithium cobaltate, even if there is a short circuit, overcharge, but also able to avoid the risk of combustion, explosion.
5, 1989, A. Manthiram and J. Goodenough found that the use of polymeric anion cathode will produce a higher voltage.
6, 1991 Sony released the first commercial lithium-ion battery. Subsequently, lithium-ion batteries revolutionized the face of consumer electronics.
7, 1996 Padhi and Goodenough found that phosphates with olivine structure, such as lithium iron phosphate (LiFePO4), are superior to traditional cathode materials, and therefore have become the current mainstream cathode material.
With the widespread use of digital products such as cell phones and notebook computers, lithium-ion batteries are widely used in these products with excellent performance, and are gradually developing into other product applications. 1998, Tianjin Power Research Institute began commercial production of lithium-ion batteries. Customarily, people also refer to lithium-ion batteries as lithium batteries, but these two batteries are not the same. Lithium-ion batteries have become mainstream.