Small aluminum shell battery parallel formation device and formation method

By designing a parallelization device for small aluminum shell batteries, using parallelization chamber and vacuum technology, the problem of insufficient voltage and current in the prior art is solved, and an efficient transformation process is achieved, and the battery consistency and cycle life are improved.

CN119695294APending Publication Date: 2025-03-25HUNAN XINRUI NEW ENERGY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411917972.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

The existing lithium battery shaping device has a low voltage and a small current, which takes a long time, resulting in poor consistency in the battery shaping and poor contact with the internal interface, which is prone to occur in lithium black spots.

Method used

A small aluminum shell battery parallelization device is designed, adopting a parallelization chamber and a vacuum mechanism, inert gas is introduced through the gas conducting mechanism to achieve gas isolation, and the transformation current and voltage are increased through an efficient charging structure and an aluminum shell battery box structure.

Benefits of technology

Through parallel synthesis and vacuum extraction technology, the chemistry voltage and current are significantly improved, the chemistry time is shortened, the internal interface contact of the battery is improved, and the chemistry pass rate and battery capacity cycle life are improved.

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Abstract

The invention relates to the field of lithium battery processing, in particular to a small aluminum shell battery parallel formation device and a formation method.The small aluminum shell battery parallel formation device comprises a cabinet body, vertical partition plates and transverse partition plates are arranged in the cabinet body, the vertical partition plates divide an inner cavity of the cabinet body into a first cavity and a second cavity, and one ends of the transverse partition plates make contact with the inner wall of the cabinet body; one end of the vertical partition plate is connected with the first cavity, the other end of the vertical partition plate is vertically connected with the first partition plate, the first cavity and the second cavity are divided into a plurality of parallel formation chambers, a vacuumizing mechanism is arranged on the cabinet body, formation units and an air guide mechanism are arranged in the parallel formation chambers, and the air guide mechanism is connected with the vacuumizing mechanism. On the other hand, the problem of black spot lithium precipitation caused by poor contact of pole pieces in a roll core in a current formation mode is solved, and the comprehensive performance of battery capacity cycle life and the like is improved.
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