What is a lithium ion button battery?

　　Lithium ion battery is a kind of secondary battery (rechargeable battery), whose work mainly depends on the movement of lithium ion between positive and negative electrodes. During charging and discharging, Li+is inserted and de embedded back and forth between the two electrodes: during charging, lithium ions (petroleum coke and graphite) are embedded in carbon to form a negative electrode (lithium or lithium alloy is used as the negative electrode for traditional lithium batteries). Petroleum coke and graphite are non-toxic and have sufficient resources. Lithium ions are embedded in carbon to overcome the high activity of lithium, solve the safety problem of traditional lithium batteries, and make the negative electrode in a lithium rich state; When discharging, the opposite is true. The commonly used electrode materials are LiCoO2, LiNiO2 and LiMnO4. The electrolyte is LiPF6+diethyl ester (EC)+dimethyl ester (DMC). The cathode LiNiO2 has reached a high level in charge discharge performance and service life, which reduces the cost. In short, it improves the comprehensive performance of lithium ion batteries.

　　1. From the surface of the button battery, it is explained and analyzed that the lithium ion button battery is a rechargeable battery, and the lithium manganese button battery is a disposable battery, which is not rechargeable.

　　2. From the weight of button battery, the lithium ion button battery with the same volume is heavier than the lithium manganese button battery.

　　3. The safety of rechargeable lithium ion button battery is higher than that of lithium manganese button battery.

　　4. The raw materials and electrolyte used in the production of lithium ion button battery and lithium manganese button battery are also different.

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