Lithium battery development process.48v lithium golf cart battery

　　In 1970, Exxon's M.S.Whittingham used titanium titanium sulfide as a positive electrode material and metal lithium as a negative electrode material to make the first lithium battery. The positive electrode material of the lithium battery is manganese dioxide or chlorine, and the negative electrode is lithium. After the battery assembly is completed, the battery has voltage and does not need to be charged. LI-ION BATTERIES is developed by lithium batteries. For example, the buckle battery used in the camera was a lithium battery. This battery can also be charged, but the cycle performance is not good. It is easy to form lithium crystals during the charging and discharge cycle, resulting in short circuit inside the battery. Therefore, this battery is prohibited from charging.

　　In 1982, R.R.Agarwal and J.R. Selman, R.R.Agarwal and J.R. Selman, found that lithium ions were embedded in graphite, and this process was fast and reversible. At the same time, lithium batteries made of metal lithium have attracted much attention. Therefore, people try to use lithium ion to embed the characteristics of graphite to make rechargeable batteries. The first available lithium -ion graphite electrode was successfully triald by Bell Lab.

　　In 1983, M.Thackey, J.Goodenough and others found that manganese spikes were excellent positive materials, which had low -cost, stable and excellent conductive and lithium -conducting performance. Its decomposition temperature is high, and the oxidation is much lower than lithium cobaltate. Even if it occurs short -circuit and over -charging, it can avoid the risk of combustion and explosion.

　　In 1989, A.Manthiram and J.GOODENUGH found that the positive electrode with agglomeration theoplasses would generate higher voltage.

　　In 1992, Sony, Japan, invented the lithium battery with a metal pole with a lithium compound with a lithium compound. During the charging and discharge process, there was no metal lithium, only lithium ion. This is a lithium ion battery. Subsequently, lithium -ion batteries innovated the appearance of consumer electronics. Such a battery with lithium cobaltate is the main power supply of portable electronic devices.

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