Introduction of imported lithium battery and domestic lithium battery

The source of mobile phone lithium battery is generally divided into three categories: the original imported lithium battery, the original factory commissioned domestic manufacturers OEM and domestic lithium battery. In fact, few mobile phone manufacturers produce their own batteries, so even if it is the original battery, it is actually the original factory to find other manufacturers OEM. Foreign mobile phone manufacturers are like this, especially domestic manufacturers. In general, the original imported lithium battery is high in price but the quality is guaranteed; the OEM battery has no major problems due to the original factory authorization; as for the domestic lithium battery, there are problems of uneven quality. It is recommended to choose the products of well-known brand manufacturers. .

The differences between the original imported lithium battery and the domestic lithium battery are: the difference in the processing technology of the battery casing, the difference in circuit protection and the difference in the battery core. Imported lithium batteries generally use high-quality PVC polyester material as the outer shell, and the strength and hardness are quite high, while domestically produced is relatively easy to break. The protection circuit of imported lithium batteries generally uses protection ICs such as SE, KO, MITSUMI, MAXIM, RICOH, TI, etc., which can achieve good stability and reliability in overcharge, overdischarge and current limiting. Most of the domestically produced ICs produced in China and Taiwan Province of China have a slightly poorer stability. At present, the quality of Japan and South Korea is generally better. The number of charge and discharge cycles and the discharge platform are significantly higher than that of domestic batteries. The following figure shows the outlines of domestic and imported batteries, among which red (Sanyo UF103450P) ), blue is the imported battery. A layer of casing is wrapped on the outside for added safety.

Dongguan Yida Electronics Co., Ltd., as a senior battery manufacturer in China, uses high-quality batteries at home and abroad, such as Sanyo, Tianjin lishen, Shenzhen BAK, etc., and the protection circuit scheme also adopts SE industry KO. , RICOH, TI and other companies' protection ICs, product quality is absolutely assured.

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