Rechargeable Battery Case Polarity Switching for Voltage Detection
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Solution Overview
Problem
High-capacity rechargeable batteries with electrically neutral cases are unstable and difficult to check for voltage abnormalities, increasing production costs and safety risks due to the lack of easy polarity verification.
Innovation Solution
A rechargeable battery design featuring an electrode switch that can change the electrical state of the case between neutral and polarized states, allowing for easy polarity verification and enhanced safety by establishing or disrupting an electrical path between the electrodes and the case, using a mechanism such as a fixing member, insulator, and cap plate contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a battery with an electrically neutral case is used, then production costs are reduced, but voltage abnormality detection becomes difficult and safety decreases
Solution Approach 1:
The patent applies the dynamics principle by making the case's electrical state changeable rather than fixed. The electrode switch enables the case to dynamically transition between electrically neutral and polarized states, allowing the battery to adapt its electrical characteristics based on operational requirements. This resolves the contradiction by enabling cost-effective neutral-case design while maintaining safety through controlled polarization when needed.
Solution Approach 2:
The patent employs parameter changes by altering the electrical state parameter of the case. Through the electrode switch mechanism, the case's electrical polarity parameter can be changed from neutral to polarized and vice versa. This allows the battery to optimize between cost (neutral state) and safety/detectability (polarized state), resolving the technical contradiction between manufacturing cost and safety.
2Ease of manufacture
If a battery with an electrically neutral case is used, then production costs are reduced, but voltage abnormality detection becomes difficult
Solution Approach 1:
The electrode switch enables dynamic control of the case's electrical state, allowing operators to switch between neutral and polarized configurations. This dynamic capability resolves the detection difficulty by enabling polarized states that facilitate voltage abnormality detection, while maintaining cost-effective neutral states during normal operation.
Solution Approach 2:
By changing the electrical polarity parameter of the case through the electrode switch, the patent enables voltage abnormality detection when needed. The ability to alter the case's electrical state from neutral to polarized provides a measurable reference for detecting voltage abnormalities, resolving the detection difficulty while maintaining cost efficiency.
3Reliability
If a battery with a case having electrical polarity is used, then safety against short circuits is improved, but production costs increase due to insulation requirements
Solution Approach 1:
The patent makes the case's electrical state dynamic rather than permanently polarized. The electrode switch allows the case to be polarized only when safety is needed, and neutral when cost is the priority. This resolves the contradiction by enabling safety on-demand without the continuous insulation requirements of permanently polarized batteries.
Solution Approach 2:
The patent changes the electrical polarity parameter of the case from a fixed state to a controllable state. Through the electrode switch, the case can transition between neutral and polarized states, allowing safety to be activated only when needed. This eliminates the continuous insulation requirements of permanently polarized batteries, reducing production costs while maintaining safety capability.
4Difficulty of detecting and measuring
If a battery with a case having electrical polarity is used, then voltage abnormality detection is improved, but production costs increase
Solution Approach 1:
The electrode switch enables dynamic switching between neutral and polarized states, allowing voltage abnormality detection to be performed on-demand. This resolves the contradiction by enabling detection capability only when needed, rather than requiring permanently polarized construction that increases production costs continuously.
Solution Approach 2:
The patent changes the case's electrical polarity parameter from a fixed polarized state to a switchable state. This allows voltage abnormality detection to be enabled through temporary polarization via the electrode switch, eliminating the need for permanently polarized construction and associated insulation costs while maintaining detection capability when needed.
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 design ensures electrical safety by allowing easy detection of voltage abnormalities and preventing short circuits, reducing production costs through simplified insulation requirements and enhancing the stability of the battery.
Implementation Method 1
an electrode switch to move through the terminal plate and the insulator between first and second positions
Implementation Method 2
The elastic member may be between the electrode switch and the terminal plate. The may include a spring.
Implementation Method 3
The rechargeable battery may include a fixing member to fix the electrode switch to the terminal plate
Implementation Method 4
an insulator between the terminal plate and the cap plate
Data Source
AI summary
A battery includes a case, first and second electrodes in the case, and a switch to change an electrical state of the case between a first state and a second state, when the first state corresponds to an electrically neutral state and the second state corresponds to an electrical polarity of the first electrode. The switch may reciprocally change the electrical state of the case between the first state and the second state.