Design of lithium battery.household energy storage lithium battery manufacture

　　a positive and negative polar capacity ratio: During the use of batteries, it will be damaged to varying degrees, so the lithium embedded space of the negative pole is required to be larger than the lithium ion space of the positive pole. If you do not consider the size of the negative versatis during design, it will cause lithium analysis and piercing the diaphragm, causing a short circuit.

　　B size: The diaphragm contraction of the battery and the width of the polar sheet. When the diaphragm contraction is too large, the polar sheet will cause a short circuit.

　　C discharge current: During the design, the surface density of the pole chrome is designed according to the product use discharge current. The density of the face is too large, the compaction is too high, the cut section of the pole ear is small, and the large current discharge will generate lithium analysis, which will cause a large amount of heat to cause the battery explosion.

　　D explosion -proof structure: When the battery internal pressure reaches a certain pressure, the function of exhaust decompression is performed to prevent the battery shell from exploding. At present, there are scratches and explosion -proof, exhaust valve parts.

　　E protection system: The protection of the battery is overcharged and the short circuit is released.

　　A over -charging: When the voltage exceeds 4.2V, the electrolyte is decomposed to generate a large amount of gas. The inner voltage of the battery is increased.

　　B High -temperature environment: Battle of battery in high temperature environment, electrolyte decomposition.

　　C protective system failure outer circuit: When users use, the external lines are short -circuited, causing battery explosions.

　　D Mechanical: Pingling and collision caused a short -circuit explosion in the battery.

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