Method for inhibiting generation of moisture in lithium ion battery

Abstract

The invention discloses a method for inhibiting generation of moisture in a lithium ion battery. The method comprises the steps of 1) adding a stabilizer; 2) keeping constant temperature for later use; 3) weighing a battery cell of the lithium ion battery; 4) vacuumizing the vacuum system; 5) injecting an electrolyte solvent and standing; 6) filling inert gas for pressurization; 7) vacuumizing again after pressure relief; 8) injecting an electrolyte containing a stabilizer into the battery cell of the lithium ion battery, vacuumizing, breaking the vacuum, and filling inert gas for pressurization; 9) checking electrolyte residues after pressure relief; 10) weighing the mass of the battery cell after electrolyte injection; and 11) calculating the actual electrolyte absorption amount of the battery. The invention belongs to the technical field of lithium ion batteries, and particularly relates to a method for inhibiting the generation of moisture in the lithium ion battery. The technicaleffect of stabilizing water and acid in an electrolyte by adding a stabilizer into the electrolyte is achieved, and the performance of the battery is ensured not to be damaged.

Description

technical field [0001] The invention belongs to the technical field of lithium ion batteries, and specifically refers to a method for suppressing the generation of moisture in lithium ion batteries. Background technique [0002] With the advancement of science and technology, batteries are widely used in mobile communications, electric vehicles, energy storage and other fields, covering almost all fields of our production, life and scientific research. Especially in recent years, with the rapid development of new energy vehicles at home and abroad, the demand for batteries is increasing, and the performance requirements for batteries are also getting higher and higher. As a representative of new energy materials, lithium-ion batteries have attracted more and more attention for their performances such as charging, discharging and cycling. Contents of the invention [0003] In view of the above situation, in order to overcome the defects of the prior art, the present invent...

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Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a method for suppressing the generation of moisture in lithium-ion batteries, and realizes the technology of stabilizing water and acid in the electrolyte by adding a stabilizer to the electrolyte The effect is to ensure that the performance of the battery is not damaged, and it effectively solves the problem of poor performance of lithium-ion batteries in the market for a long time, and its own complex structure and inconvenient maintenance.