Large-capacity power lithium battery and preparation method thereof
A power lithium and large-capacity technology, which is applied in the field of large-capacity power lithium battery and its preparation, can solve problems such as power source application, and achieve good high-rate performance, no environmental pollution, and high safety performance
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[0025] Example 1:
[0026] The large-capacity power lithium battery of this embodiment is designed according to the rated capacity of a single battery of 10Ah. It is formed by stacking and encapsulating a positive electrode, a thin film of gel polymer electrolyte, and a negative electrode. The negative electrode and the positive electrode pass through the gel state. The key to membrane isolation of polymer electrolyte is that the active material of the negative electrode has a particle size of 0.165μm and a specific surface area of 9.2m. 2 / g of modified lithium titanate; the active material of the positive electrode is a ternary material; the thin film of the gel polymer electrolyte is formed by mixing and drying a solution of a lithium salt, an organic solvent, and a conductive polymer solution, Such as figure 1 As shown, the specific preparation method is as follows:
[0027] A: Using 84% by weight of modified lithium titanate, 7% by weight of conductive carbon black and 9% b...
Example Embodiment
[0033] Example 2:
[0034] The large-capacity power lithium battery of this embodiment is designed according to the rated capacity of a single battery of 40Ah. It is formed by stacking and encapsulating a positive electrode, a thin film of a gel polymer electrolyte, and a negative electrode. The negative electrode and the positive electrode pass through the gel state. The key to membrane isolation of polymer electrolyte is that the active material of the negative electrode has a particle size of 0.165μm and a specific surface area of 9.2m. 2 / g of modified lithium titanate; the active material of the positive electrode is a ternary material; the thin film of the gel polymer electrolyte is formed by mixing and drying a solution of a lithium salt, an organic solvent, and a conductive polymer solution, Such as figure 1 As shown, the specific preparation method is as follows:
[0035] A: Using 84% by weight of modified lithium titanate, 7% by weight of conductive carbon black and 9%...
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