Secondary Cell

Secondary Cell

Secondary Cell

Lithium-ion battery is a rechargeable battery that mainly relies on the movement of lithium ions between the positive and negative electrodes to work. Lithium-ion batteries use an intercalated lithium compound as an electrode material.
The main cathode materials currently used for lithium-ion batteries are: lithium cobalt oxide (LiCoO2), lithium manganate (LiMn2O4), lithium nickelate (LiNiO2), lithium iron phosphate (LiFePO4) and lithium titanate (LTO).
And lithium cobalt oxide (LiCoO2) extension change nickel cobalt lithium manganate (Li(NiCoMn)O2) is the lithium ternary battery we often hear
These lithium-ion batteries and their developed products are common in consumer electronics. They are one of the most common types of rechargeable batteries in portable electronic devices, featuring high energy density, no memory effect, and only slow charge loss when not in use. In addition to consumer electronics, the ever-advancing lithium-ion batteries are gaining popularity for military, electric vehicles, and aerospace. For example, lithium iron phosphate batteries are widely used in industrial automation equipment. Tesla also changed from 21700 lithium ternary to lithium iron phosphate batteries for use in vehicles. Electric buses and electric yachts also carry lithium iron phosphate batteries.
However, the poor cycle performance and electrochemical stability of lithium manganate (LiMn2O4) greatly limit its industrialization. The lithium nickelate (LiNiO2) process is difficult, and the process conditions are not properly controlled, which can easily lead to the unstable electrochemical performance of LiNiO2 materials or decline. As a result, these two materials are less and less used in batteries.

In addition, the so-called lithium battery in ordinary life is actually a misnomer, and the actual classification is as follows:

Lithium battery/disposable non-rechargeable (Lithium battery): Although it is often used as the abbreviation of lithium-ion battery, a lithium battery in the strict sense is a lithium primary battery, which contains pure lithium metal, which is disposable and non-rechargeable.
Lithium-ion polymer batteries/rechargeable (Lithium-ion polymer batteries, also often referred to as "lithium polymer batteries"): Basically, they are also lithium-ion batteries, an improvement of ordinary lithium-ion batteries, using colloidal or Rechargeable lithium-ion batteries with solid polymers replacing liquid organic solvents have better safety and will not explode, but can shape cells of various shapes and become the mainstream form of batteries today.
Lithium Ternary (Li(NiCoMn)O2):
Wearable device: secret recorder, bluetooth headset
Consumer Products: Stylus Pens, Electronic Cigarettes
Mobile devices: POS machines, rugged tablets, bright flashlights
IoT: Various Trackers, Smart Farm Energy Storage, Elderly Alarms, Smart Bicycle Pedals
Renewable energy: micro solar energy storage

Lithium Iron Phosphate (LiFePO4):
Most of the battery module types are used in AGV automation equipment, small solar energy storage

Lithium Titanate (LTO):
Special miniaturized products, battery modules



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