Lithium Battery Knowledge

During the use of polymer lithium batteries , battery bulging may occur due to excessive charging current, overcharging, etc. , and there are also low-cost bulging (peeling) polymer lithium batteries sold on the shopping network for the polymerization of such internal gas. Lithium battery, if used continuously, will not only cause heat and bulging, but also cause safety hazards, and will accelerate battery damage. Therefore, the internal gas must be removed before continuing to use. Here is a brief introduction to the internal gas removal of the polymer lithium battery.

The International Air Transport Association (IATA) issues regulations on the transport of Dangerous Goods by air, the DGR. The current edition — number 58 — has introduced stricter restrictions on transport and packaging of Lithium-Ion batteries after an increasing amount of incidents. It is imperative to develop and use packaging that is compliant with IATA Dangerous Goods Regulations (DGR) and to follow all other aspects of the regulations.

Li-ion batteries contain a protection circuit that shields the battery against abuse. This important safeguard also turns the battery off and makes it unusable if over-discharged. Slipping into sleep mode can happen when storing a Li-ion pack in a discharged state for any length of time as self-discharge would gradually deplete the remaining charge. Depending on the manufacturer, the protection circuit of a Li-ion cuts off between 2.2 and 2.9V/cell.