Method and system for preparing liquid and dry graphene from recycled anode materials of waste lithium series batteries

Recycling negative electrode materials from waste lithium-ion batteries to produce graphene addresses the energy and cost issues of traditional methods, achieving a cost-effective and environmentally friendly graphene production process.

TW202631494AInactive Publication Date: 2026-08-01陈文贤 +1
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Patent Information

Application Number
TW114102184
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-08-01
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The production of graphene from carbon materials or graphite minerals is energy-intensive, costly, and environmentally harmful, with increasing carbon taxes adding to business expenses.

Method used

A method to recycle negative electrode materials from waste lithium-ion batteries to produce liquid and dried graphene, involving steps like physical decomposition, washing, dehydration, sieving, calcination, ultrasonic cleaning, wet grinding, and dehydration, which reduces energy consumption and costs while utilizing waste resources.

Benefits of technology

This method effectively recycles waste lithium-ion batteries to produce graphene with reduced energy consumption and costs, aligning with environmental protection and providing a cost-effective, efficient process.

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Abstract

A method for preparing liquid and dry graphene from recycled anode materials of waste lithium series batteries involves the following steps: After physically decomposing the waste lithium series batteries, the materials are either manually or mechanically crushed. The internal anode materials are then obtained through processes of washing, dehydration, drying, and sieving. These anode materials are generally carbon powder, primarily consisting of artificial graphite with a carbon content exceeding
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