1、 Advantages of 3c lithium ion battery

(1) What is a 3C lithium-ion battery? 3C is the abbreviation of computer, communication and consumer electronics. Lithium ion battery is used for corresponding products. Therefore, the batteries used for mobile phones, tablets and laptops are called 3C lithium-ion batteries. 3C lithium ion battery has the following advantages: ① high energy density, ② high rated voltage, ③ high carrying capacity, ④ long service life, ⑤ strong adaptability to high and low temperatures, ⑥ light weight, ⑦ low self discharge rate, ⑧ green environmental protection and sustainable development, ⑨ basically no water consumption in the production process

2、 Disadvantages of 3C lithium ion battery

(2) However, 3C lithium-ion battery has the disadvantages of poor safety and cannot be overcharged or over discharged, which may lead to battery bulge and explosion. Explosion analysis of 3C lithium-ion battery The voltage of 3C lithium-ion battery shall not be higher than 4.2V and lower than 2.4V. Overcharging will lead to short circuit. After overcharge, the battery temperature will rise, electrolyte will break, and gas will appear, which will cause the battery shell to expand and crack, so that oxygen will enter and react with lithium atoms accumulated on the negative electrode surface, and then explode. If the battery is excessively discharged, some materials may be damaged. When the current is too large, it is the same as overcharge, which will lead to explosion hazard. Therefore, the protection of 3C lithium ion battery shall at least include the upper limit of charging voltage, lower limit of discharge voltage and upper limit of current. 3C lithium ion battery is composed of battery cell and battery protection board. The function of the protection plate is to protect the battery from charging, discharging, current and short circuit.