In -depth interpretation of lithium ion batteries.lithium battery for solar energy storage system

　　Lithium battery is a new high -energy battery developed in the 20th century. It can be understood as a battery containing lithium, lithium, lithium alloy, lithium ion, lithium polymer), and can be divided into lithium metal batteries (very few production and use ) And lithium ion batteries (now in large use). Because it has the advantages of higher energy, high battery voltage, wide working temperature range, and long storage life, it has been widely used in military and civilian small electrical appliances, such as mobile phones, portable computers, cameras, cameras, etc., and some replaces traditional batteries. Essence

　　In the 1970s, 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.

　　In 1980, J. Goodnough found that lithium cobaltate could be used as a lithium ion battery positive electrode material.

　　The R.R.Agarwal and J.R. Selman of the Illinois Institute of Technolog in 19982 found that lithium ions have the characteristics of embedded graphite in lithium ions. This process is 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 1991, Sony released the first commercial lithium -ion battery. Subsequently, lithium -ion batteries innovated the appearance of consumer electronics.

　　In 1996, PADHI and GOODENOUGH found that phosphate with olive structures, such as lithium phosphate (LIFEPO4), is more superior than traditional positive pole materials, so it has become the current mainstream positive pole material.

　　LI-ION BATTERIES is developed by lithium batteries. So before introducing Li-ION, first introduce lithium batteries. For example, button batteries are lithium batteries. The positive electrode material of the lithium battery is manganese dioxide or sulflinllochrium, and the negative electrode is lithium. After the battery assembly is completed, the battery has voltage and does not need to be charged. This battery can also be charged, but the cycle performance is not good. During the charging and discharge cycle, it is easy to form a lithium branches crystal, resulting in short circuit inside the battery. Therefore, this battery is prohibited from charging.

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