Formation method of high-capacity power lithium iron phosphate battery
A lithium iron phosphate battery and the technology of its formation method are applied in the directions of non-aqueous electrolyte storage batteries, electrolyte storage batteries, charging/discharging of secondary batteries, etc. The film is not dense and complete enough to achieve the effect of improving the number of charge and discharge and service life
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[0028] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0029] Such as figure 1 As shown, the present invention provides a method for forming a large-capacity lithium iron phosphate battery, comprising the following steps:
[0030] Step A: Put the electrolyte in the battery and leave it at room temperature for a period of time T, and start charging after the pole pieces and diaphragm are fully infiltrated;
[0031] Step B: Use a certain current A and power to preform the battery in stages, divide the preformation of the battery into N stages for charging according to the different battery capacities, and put it aside for a period of time T1 after each charge, and at the same time put it aside During the process, the gas inside the battery is pumped out;
[0032] Step C: After the preformation stage is completed, the battery is placed in a dry environme...
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