Lithium battery lamination processing technology

Abstract

The invention discloses a lithium battery lamination processing technology, which comprises the following steps: a, stirring; b, coating; c, laminating; d, welding; e, capping; f, liquid injecting; g,pre-forming; h, molding; i, formation; and j, testing. According to the lithium battery lamination processing technology, lithium batteries can be processed and produced in batches, the humidity of aprocessing environment is conveniently controlled, the water content of positive and negative electrode materials and electrolytic solution is conveniently controlled, the processing quality of the lithium batteries is improved, and subsequent popularization and application are facilitated.

Description

Technical field [0001] The present invention relates to the technical field related to lithium batteries, specifically a lithium battery lamination processing technology. Background technique [0002] Lithium battery refers to a battery containing lithium (including metallic lithium, lithium alloy, lithium ion, and lithium polymer) in the electrochemical system; lithium battery can be roughly divided into two categories: lithium metal battery and lithium ion battery; lithium battery Metal batteries are usually non-rechargeable and contain metallic lithium; lithium-ion batteries do not contain metallic lithium and are rechargeable. Because lithium batteries are smaller than lead-acid batteries, they are favored by consumers. Currently, For the lamination process, water, as a trace component in the electrolyte, has a great impact on the formation of the SEI film and battery performance of lithium-ion batteries. The fully charged negative electrode has similar properties to lit...

AI Technical Summary

Problems solved by technology

[0002] Lithium battery (Lithium battery) refers to the battery containing lithium (including metal lithium, lithium alloy, lithium ion, lithium polymer) in the electrochemical system; lithium battery can be roughly divided into two categories: lithium metal battery and lithium ion battery; lithium battery Metal batteries are usually non-rechargeable and contain metallic lithium; lithium-ion batteries do not contain metallic lithium and are rechargeable. Because lithium batteries are smaller than lead-acid batteries, they are favored by consumers. For the stacking process, water, as a trace component in the electrolyte, has a great influence on the formation of the SEI film and battery performance of lithium-ion batteries. The negative electrode in the full state is similar to lithium metal in nature and can be directly used with Water reacts, and the existing technology cannot well control the water content of positive and negative electrode materials and electrolyte, which directly affects the processing quality of lithium batteries. Therefore, a lithium battery lamination processing technology is designed and produced here to solve the above problems.