| abstract |
The invention belongs to the technical field of batteries, and more particularly relates to a gas adsorbent that can prolong the life of a lithium ion battery and a lithium ion battery thereof. The gas adsorbent includes a cuprous ion compound and a porous material. The adsorption rate is 0.4-1 mmol/h, preferably 0.7-1 mmol/h. The gas adsorbent has both high specific surface area and chemical properties of complex reaction with CO, which can timely reduce the internal air pressure caused by the gas generated by the interaction between the pole pieces of the cell and the electrolyte, and reduce the bulging of the cell and the interface impedance. , and prolong the service life of the battery core, the gas adsorbent is packaged with a porous breathable film, and placed in the top sealing space inside the battery core, the structure is simple and easy to industrialize production and manufacture. |