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The development process of lithium ion battery

- Dec 15, 2017 -

In 1970, Exxon's M.s.whittingham used titanium sulfide as a cathode material and lithium as the anode material to make the first lithium battery. The cathode material of lithium battery is manganese dioxide or thionyl chloride, and the negative electrode is lithium. When the battery is assembled, the battery is voltage and does not need to be charged. Lithium-ion batteries (Li-ion batteries) are the development of lithium batteries. For example, a button cell used in a camera is a lithium-ion battery. This kind of battery can also charge, but the cycle performance is not good, in the charge and discharge cycle process is easy to form lithium crystallization, resulting in a short circuit inside the battery, so the general situation of this battery is prohibited to charge. [2]

The R.r.agarwal and J.r.selman of the Illinois Polytechnic University (the Illinois Cato of Marvell) in 1982 found that lithium ions had properties of embedded graphite, a process that was fast and reversible. At the same time, lithium-ion batteries made of lithium metal have attracted much attention, so people try to make rechargeable batteries by using lithium ions embedded in graphite. The first available lithium-ion graphite electrode was successfully manufactured at Bell Labs.