Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the negative electrode material and a non-aqueous electrolyte solution. The earliest lithium metal battery was proposed and studied by Gilbert N. Lewis in 1912. In the 1970s, MS Whitington proposed and began researching lithium-ion batteries. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental controls. Therefore, lithium-ion batteries were not widely used for a long time. With the development of science and technology, lithium-ion batteries have now become mainstream.
Introduction to soft-pack lithium batteries
A pouch lithium battery is simply a liquid lithium-ion battery encased in a polymer shell. Structurally, it uses aluminum-plastic film packaging, so in the event of a safety hazard, a pouch battery will at most swell and crack.
The difference between soft-pack and hard-pack lithium batteries
The main difference between soft-pack and hard-pack lithium batteries lies in the material of the battery casing. If there is packaging, it is not easy to tell the difference; you must see the battery itself. Steel-cased batteries are heavier than batteries of the same volume. However, it is not easy to distinguish between aluminum-cased and soft-pack batteries. Soft-pack batteries are slightly softer than aluminum-cased batteries and are easily deformed by hand.
