Electrolyte infiltration method for soft-pack lithium-ion battery, formation method of soft-pack lithium-ion battery
A technology of lithium-ion batteries and ion batteries, which is applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, and climate sustainability. It can solve problems such as long storage time, improve the wetting effect, promote electrode interface reactions, and shorten the standing time. The effect of time
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Embodiment 1
[0032] The electrolyte infiltration method of the soft-packed lithium-ion battery of this embodiment includes filling the soft-packed lithium-ion battery with an airbag with electrolyte according to the designed amount, vacuumizing the opening of the soft-packed lithium-ion battery, then packaging, and then heating the soft-packed lithium-ion battery at 0°C. Stand in vacuum for 20h.
[0033] The formation method of the soft pack lithium-ion battery of the present embodiment comprises the following steps:
[0034] 1) Charge the above-mentioned soft pack lithium-ion battery after standing in vacuum to 4.2V at a constant current at 0.2C and then charge at a constant voltage to 0.05C;
[0035] 2) Puncture the airbag of the soft-pack lithium-ion battery charged in step 1), and pump air.
[0036] After the soft pack lithium-ion battery of this embodiment is manufactured, the negative electrode interface is disassembled at full charge as shown in figure 1 As shown, it can be seen t...
Embodiment 2
[0038] The electrolyte infiltration method of the soft-pack lithium-ion battery of this embodiment includes filling the soft-pack lithium-ion battery with an airbag with electrolyte according to the designed amount, vacuumizing the opening of the soft-pack lithium-ion battery for 0.02h, then packaging, and then Stand in vacuum at 25°C for 12h.
[0039] The formation method of the soft pack lithium-ion battery of the present embodiment comprises the following steps:
[0040] 1) Charge the above-mentioned soft pack lithium-ion battery after standing in vacuum to 4.2V at a constant current at 0.2C and then charge at a constant voltage to 0.05C;
[0041] 2) Puncture the airbag of the soft-pack lithium-ion battery charged in step 1), and pump air.
[0042] After the production of the soft-pack lithium-ion battery of this embodiment is completed, the negative electrode interface is disassembled at full charge, as shown in figure 2 As shown, it can be seen that the negative electr...
Embodiment 3
[0044] The electrolyte infiltration method of the soft-pack lithium-ion battery of this embodiment includes filling the soft-pack lithium-ion battery with an airbag with electrolyte according to the designed amount, vacuumizing the opening of the soft-pack lithium-ion battery for 0.02h, then packaging, and then Stand in vacuum at 40°C for 8h.
[0045] The formation method of the soft pack lithium-ion battery of the present embodiment comprises the following steps:
[0046] 1) Charge the above-mentioned soft pack lithium-ion battery after standing in vacuum to 4.2V at a constant current at 0.2C and then charge at a constant voltage to 0.05C;
[0047] 2) Puncture the airbag of the soft-pack lithium-ion battery charged in step 1), and pump air.
[0048] After the soft pack lithium-ion battery of this embodiment is manufactured, the negative electrode interface is disassembled at full charge as shown in image 3 As shown, it can be seen that the negative electrode interface is f...
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