102450 polymer battery PACK assembly and common problems, 102450 polymer battery assembly technology

Lithium-ion 102450 polymer battery PACK assembly and common problems, lithium-ion 102450 polymer battery assembly technology. my country's 102450 polymer battery energy storage projects have entered the accelerated construction stage, with an annual increase rate of more than 70%. Lithium-ion batteries will play a key role in it due to their fast response speed, high charging and replacement efficiency, many cycles, and fast technology upgrades. However, when we PACK lithium-ion 102450 polymer battery packs, we often encounter various problems, which always bother us. In view of this, the editor will tell you about lithium-ion 102450 polymer battery PACK assembly and common problems and lithium-ion 102450 polymer battery assembly technology.

Lithium-ion 102450 polymer battery PACK assembly and common problems

1. Lithium-ion 102450 polymer battery expansion

1. Lithium-ion 102450 polymer battery expansion during charging: When lithium-ion batteries are charged, lithium-ion batteries will naturally expand, but generally not more than 0.1mm, but overcharging will cause electrolyte decomposition, internal pressure increase, and lithium-ion batteries to expand.

2. Expansion during cycling: When the 102450 polymer battery is cycling, the thickness will increase with the number of cycles, but it will basically not increase after more than 50 cycles. The normal increase is generally 0.3~0.6mm, and the aluminum shell is more serious. This phenomenon is caused by normal 102450 polymer battery reaction. However, if the shell thickness is increased or the internal material is reduced, the expansion phenomenon can be appropriately reduced.

2. 102450 polymer battery explosion

1. Overcharge explosion: The protection circuit is out of control or the detection cabinet is out of control, causing the charging voltage to be greater than 5V, causing the electrolyte to decompose, a violent reaction occurs inside the 102450 polymer battery, the internal pressure of the 102450 polymer battery rises rapidly, and the 102450 polymer battery explodes.

2. Overcurrent explosion: The protection circuit is out of control or the detection cabinet is out of control, causing the charging current to be too large, causing lithium ions to not be embedded in time, and lithium metal is formed on the surface of the pole piece, penetrating the diaphragm, and the positive and negative electrodes are directly short-circuited to cause an explosion.

Lithium-ion 102450 polymer battery assembly technology

1. Use lithium-ion 102450 polymer battery packs with good quality, and qualified and stable suppliers must supply single cells with good performance. The single cells must undergo a series of safety tests and performance tests and be used after passing them.

2. The 102450 polymer battery structure adopts ventilation design, and the spacing between two adjacent batteries is not less than 2mm. This structure requires the 102450 polymer battery to be fixed with a plastic bracket.

3. The principle of giving priority to operational safety is adopted, that is, it is not easy for employees to short-circuit or have better preventive measures when operating.

4. Different batches of batteries are made into typical finished products and life tests are carried out. When summarizing the relevant experience of lithium-ion 102450 polymer battery PACK design specifications, the 102450 polymer battery finished products are tested for cycle life to obtain the actual cycle life.

5. The equipment principle is adopted, that is, the completion of auxiliary equipment is done as little as possible without manual work, at least semi-automatic.

6. Verify the high and low temperature performance of the 102450 polymer battery. The 102450 polymer battery cells of different PACK lithium-ion 102450 polymer battery manufacturers are made into finished products and tested at different rates of discharge at high and low temperatures to obtain the actual discharge curve.

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