All-solid-state battery control via fluid pressurization
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Solution Overview
Problem
All-solid-state batteries face performance degradation due to charge and discharge cycles, leading to reduced battery life and unstable power output, which existing control systems fail to effectively mitigate.
Innovation Solution
An all-solid-state battery control system that includes a housing filled with a pressurizing fluid, a pressurizer to apply pressure based on temperature and state of charge, and a processor to manage pressure and temperature adjustments, ensuring optimal ion conductivity and reducing internal resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the all-solid-state battery undergoes charge and discharge cycles, then the battery provides power output, but the battery performance degrades and internal resistance increases
Solution Approach 1:
The patent applies pressure to the all-solid-state battery as a parameter change to maintain contact between battery components during charge and discharge cycles. This pressure application prevents performance degradation and internal resistance increase, allowing the battery to maintain reliable power output over extended cycling operations.
2Reliability
If pressure is applied to the all-solid-state battery, then ion conductivity and power output are stabilized, but device complexity increases due to additional pressurization components
Solution Approach 1:
The patent introduces a pressurization system with fluid medium as an intermediary to apply pressure to the all-solid-state battery. This mediator approach stabilizes ion conductivity and power output while managing the complexity through a controlled pressure application mechanism rather than direct mechanical contact.
3Adaptability or versatility
If the battery operates at varying temperatures, then the battery adapts to different environmental conditions, but ion conductivity and power output become unstable
Solution Approach 1:
The patent applies pressure as a compensating parameter change to counteract the effects of temperature variations on the all-solid-state battery. By maintaining appropriate pressure levels, the system stabilizes ion conductivity and power output across different environmental temperatures, preserving both adaptability and reliability.
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 system extends the battery's operational life by maintaining stable performance and ion conductivity, suppressing internal resistance increases, and enabling favorable output over a longer term.
Implementation Method 1
The pressurizer is configured to apply pressure to the all-solid-state battery via the fluid
Implementation Method 2
The processor is configured to control a magnitude of the pressure to be applied to the all-solid-state battery by the pressurizer, on the basis of a temperature of the all-solid-state battery and a state of charge of the all-solid-state battery
Data Source
AI summary
An all-solid-state battery control system includes an all-solid-state battery, a housing, a fluid, a pressurizer, and a processor. The all-solid-state battery includes a solid electrolyte. The housing has a space containing the all-solid-state battery. The fluid is configured to fill the space of the housing. The pressurizer is configured to apply pressure to the all-solid-state battery via the fluid. The processor is configured to control a magnitude of the pressure to be applied to the all-solid-state battery by the pressurizer, on the basis of a temperature of the all-solid-state battery and a state of charge of the all-solid-state battery.