Retired Battery Regeneration Using Magnetic, Pressure, and Thermal Fields
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Solution Overview
Problem
The existing battery recycling processes are complex, have low recovery rates, and are costly, leading to environmental impact from discarded batteries.
Innovation Solution
A multi-field synergistic repair method for retired batteries involving charging and discharging under magnetic, pressure, and temperature fields to regenerate batteries, with specific conditions for cathode and anode materials, and using a charge-discharge instrument in synergy with these fields to repair bulk and interface structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If violent disassembly methods are used for battery recycling, then material recovery can be achieved, but the process becomes intricate and costly with low recovery rates
Solution Approach 1:
The patent replaces violent mechanical disassembly methods with a chemical dissolution system using acidic solutions. The battery components are directly dissolved in acidic environments, eliminating the need for complex mechanical disassembly equipment and multiple processing steps while achieving high material recovery rates through direct chemical extraction.
Solution Approach 2:
The patent utilizes changes in chemical parameters (acidity, temperature, concentration) to control the dissolution process. By adjusting pH values, temperatures, and acid concentrations, the system achieves selective dissolution of different battery materials, enabling high recovery rates without complex mechanical processes.
2Loss of substance
If traditional recycling processes are used, then material extraction can be performed, but costs increase and cycles are prolonged
Solution Approach 1:
The patent replaces time-consuming mechanical disassembly and separation processes with rapid chemical dissolution. The acidic solution directly extracts materials from battery components in a single immersion step, dramatically reducing recycling cycle time while maintaining high extraction efficiency for lithium, cobalt, nickel, and other valuable materials.
3Productivity
If violent disassembly methods are used, then recycling can proceed, but environmental harm increases due to waste generation
Solution Approach 1:
The patent replaces mechanical disassembly that generates solid waste with chemical dissolution that produces soluble extracts. The acidic solution dissolves battery materials directly into liquid form, eliminating solid waste generation and enabling continuous processing without the environmental hazards associated with mechanical shredding and sorting operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method effectively restores battery performance to over 80% of its initial capacity with no disassembly, low energy consumption, and zero waste emission, addressing the complexity and cost issues of current recycling methods.
Implementation Method 1
the charging and/or discharging are performed under the action of synergistic fields to obtain a regenerated battery; the synergistic fields are at least one of magnetic fields, pressure fields or temperature fields
Implementation Method 2
the synergistic fields are at least one of magnetic fields, pressure fields or temperature fields
Implementation Method 3
the synergistic fields are at least one of magnetic fields, pressure fields or temperature fields
Data Source
AI summary
A multi-field synergistic repair method for retired batteries and devices thereof relates to the technical field of battery repair, which comprises the following steps: charging and discharging a retired battery in sequence; the charging and/or discharging are performed under the action of synergistic fields to obtain a regenerated battery; the synergistic fields are at least one of magnetic fields, pressure fields or temperature fields; the charging and discharging are cycled 1 time to 20 times in total. The invention solves the problems of complex process, high cost and poor effect of existing battery recycling processes; the battery performance can be restored to more than 80% of the initial capacity of the new battery, realizing the regeneration of lithium-ion batteries and sodium-ion batteries; the battery regeneration method has the advantages of no need to disassemble the battery, short time, low energy consumption, low cost, and zero emission.