What is the origin and development of lithium-ion batteries?

In the 1970s, M.S. whittingham of Exxon used titanium sulfide as the positive electrode material and lithium metal as the negative electrode material to make the first lithium battery.

In 1980, j.godenough discovered that lithium cobalt oxide could be used as a cathode material for lithium-ion batteries.

In 982, university of Illinois institute of technology (theIllinoisInsTItuteofTechnology) R.R.A garwal and J.R.S elman found embedded lithium ion has the properties of the graphite, the process is quick, and reversible. At the same time, lithium batteries made of lithium metal have attracted much attention because of their potential safety hazards. Therefore, people try to make rechargeable batteries with the characteristics of lithium ions embedded in graphite. The first available lithium ion graphite electrode was trial-manufactured by bell laboratories.

In 1983, m.hackeray and j.groodenough et al. found that manganese spinel was an excellent anode material with low price, stability and excellent performance of conducting electricity and lithium. Its decomposition temperature is high, and the oxidation is far lower than the lithium cobalt oxide, even if there is a short circuit, overcharge, also can avoid the risk of combustion, explosion.

In 1989, a.j. thiram and j. g. odenough found that the adoption of a positive electrode for polymerized anions would produce a higher voltage.

1991 SONY released the first commercial lithium-ion battery. Then lithium-ion batteries revolutionized consumer electronics.

In 1996, Padhi and Goodenough found that peridotite-structured phosphates, such as lithium iron phosphate (LiFePO4), are superior to traditional anode materials and have become the mainstream anode materials.

1. The JPG

Li-ion batteries were also developed before. So before we talk about li-ion, let's talk about lithium batteries. Button batteries, for example, are lithium batteries. Lithium batteries have manganese dioxide or thionyl chloride as the positive electrode and lithium as the negative electrode. After the battery is assembled, the battery has a voltage and does not need to be charged. This kind of battery can also be charged, but the cycle performance is not good, in the process of charging and discharging cycle, easy to form lithium dendrite, cause a short circuit inside the battery, so generally this kind of battery is prohibited to charge.

Later, the Japanese SONY company invented a lithium battery with carbon material as the negative electrode and lithium compounds as the positive electrode. In the charging and discharging process, there is no lithium metal, only lithium ion. This is the lithium ion battery.

In the early 1990s, Japan's Sony energy development company and Canada's Moli energy company respectively developed a new type of lithium ion battery with good performance and no environmental pollution. With the rapid development of information technology, handheld machinery and electric vehicles, the demand for highly efficient power supply has increased rapidly, and lithium battery has become one of the fastest growing fields.

Pay attention to these points, your electric car lithium battery is no problem for five or six years!

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