A device for reducing residual alkali of an electrode material

By designing a spindle-shaped residual alkali absorption device that includes filter cloth and adsorbent, the problem of residual alkali treatment in electrode materials has been solved, and the stability and safety of electrode materials have been improved, making it suitable for industrial applications.

CN224388749UActive Publication Date: 2026-06-23XINJIANG HANHANG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG HANHANG TECH CO LTD
Filing Date
2025-07-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing technologies are unable to effectively address residual alkali in electrode materials caused by excessive reactants or air oxidation, leading to unstable slurry, decreased battery performance, and even safety hazards.

Method used

A device for reducing residual alkali in electrode materials is designed, employing a spindle-shaped shell and filter element structure. The filter element consists of filter cloth, adsorbent, and alkali absorbent. Through a magnetic recovery device, residual alkali is adsorbed by adsorbents such as strongly acidic cation exchange resin, ferric sulfate, and activated carbon, preventing its diffusion.

Benefits of technology

It effectively reduces the residual alkali content in electrode materials, improves material stability, prevents side reactions, reduces battery safety hazards, and the device has a simple structure, low cost, good compatibility, and is suitable for industrial production.

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Abstract

The utility model provides a device for reducing residual alkali of electrode material, belongs to new energy battery technology field, and specific scheme is as follows: the device includes the filter core and the shell, the shape of shell is fusiform, at least one end is fixed with magnetic ball in its inside, the surface of shell is evenly provided with a plurality of holes, the filter core is placed in the shell, the filter core includes filter cloth, adsorbent and alkali absorption medicine wrapped by membrane, the outer layer of alkali absorption medicine wrapped by membrane is adsorbent, the outer layer of adsorbent is wrapped by filter cloth. The device is placed in the wet material to be removed alkali, and the residual alkali is adsorbed, the content of residual alkali in material is reduced, and the quality of electrode material is improved.
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