-Why has ternary lithium batteries become a new star in power lithium batteries?

Why has ternary lithium batteries become a new star in power lithium batteries?
author:enerbyte source:本站 click365 Release date: 2023-08-28 08:27:58
abstract:
Ternary polymer lithium-ion batteries refer to lithium-ion batteries that use nickel cobalt manganese oxide (Li (NiCoMn) O2) as the cathode material. The precursor product of ternary composite cathode material is made of nickel salt, cobalt salt, and manganese salt as raw materials, and the pr...

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Ternary polymer lithium-ion batteries refer to lithium-ion batteries that use nickel cobalt manganese oxide (Li (NiCoMn) O2) as the cathode material. The precursor product of ternary composite cathode material is made of nickel salt, cobalt salt, and manganese salt as raw materials, and the proportion of nickel cobalt manganese inside can be adjusted according to actual needs.

Safety is of utmost importance

Wang Shihu said: Regarding the safety of lithium-ion batteries, attention must be paid. The characteristics of ternary lithium-ion batteries are high energy density and higher voltage, so the battery capacity of the same weight battery pack is larger, and the car can run farther and faster. However, its weakness lies in its poor stability. If there is an internal short circuit or the positive electrode material encounters water, there will be an open flame. So generally, 18650 batteries are protected by a steel shell. As Tesla's battery pack is composed of around 7000 18650 batteries, although Tesla provides comprehensive protection for the battery pack, there is still a fire hazard in extreme collision accidents.

Lithium iron phosphate ion batteries are much more stable, and even if the battery panel is punctured or short circuited, it will not explode or burn, and will not ignite when exposed to high temperatures of 350 ℃ (ternary lithium ion batteries cannot withstand temperatures of 180-250 ℃). So in terms of safety performance, lithium iron phosphate batteries are slightly superior.

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