Battery Deactivation Using Conductive Covering on Al Terminals
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Solution Overview
Problem
Existing methods for deactivating batteries with aluminum terminals are ineffective due to corrosion by treatment liquids, hindering the reduction of remaining voltage and outer short circuit formation.
Innovation Solution
A method involving a soaking step with a treatment liquid containing water and a supporting salt, using a conductive covering body to electrically connect with the aluminum terminal, thereby inhibiting corrosion and maintaining outer short circuit for effective deactivation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery is soaked in treatment liquid to cause outer short circuit, then the voltage of the battery can be decreased, but the Al terminal is deteriorated by the treatment liquid
Solution Approach 1:
A covering body made of corrosion-resistant material is introduced as an intermediary between the treatment liquid and the Al terminal. The covering body has conductive properties that allow electrical connection while protecting the Al terminal from direct contact with the corrosive treatment liquid, thus enabling voltage reduction without terminal deterioration
Solution Approach 2:
The material properties of the covering body are specifically selected to have both corrosion resistance and electrical conductivity, changing the parameters of the protective layer from traditional non-conductive materials to conductive corrosion-resistant materials, allowing simultaneous protection and electrical function
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 deactivates batteries by preventing aluminum terminal corrosion and ensuring complete voltage reduction, enabling safe disassembly processes.
Implementation Method 1
soaking a battery including an Al terminal in a treatment liquid to decrease a voltage of the battery by causing outer short circuit through the treatment liquid
Implementation Method 2
the covering body is arranged so as to cover at least a part of the Al terminal to make the treatment liquid and the Al terminal electrically connected through the covering body
Data Source
AI summary
A main object of the present disclosure is to provide a method for disposing of a battery, with which the battery can be deactivated well. The present disclosure achieves the object by providing a method for disposing of a battery, the method including: a soaking step of soaking a battery including an Al terminal in a treatment liquid to decrease a voltage of the battery by causing outer short circuit through the treatment liquid, wherein the treatment liquid contains water and a supporting salt; and in the soaking step, a covering body including conductivity is used, and the covering body is arranged so as to cover at least a part of the Al terminal to make the treatment liquid and the Al terminal electrically connected through the covering body.