Measurement Method for Determining Cycle Stability of Individual Battery Components

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This invention relates to a method for determining the cycle stability of individual battery components. The method uses a specially constructed battery in which the electrodes are divided into segments by insulating elements. Each segment can be switched to act as either active or passive during battery cycling. By changing which segments are activated or deactivated in different cycles and measuring key parameters (such as discharge curves or impedance) before and after these changes, the method allows for detailed analysis of the degradation and stability of separate battery components.

Use CasesContent extracted from patent full text and abstract with AI.

• Battery research laboratories for evaluating new electrode materials
• Quality control during battery manufacturing
• Development of longer-lasting batteries for electric vehicles
• Optimization of batteries for consumer electronics, such as smartphones or laptops
• Accelerated aging tests for battery components in industrial applications

BenefitsContent extracted from patent full text and abstract with AI.

• Allows precise analysis of the degradation behavior of individual battery components
• Enables targeted improvements to battery design and materials
• Reduces time and cost compared to testing full battery cells repeatedly
• Supports the development of batteries with better performance and longer life
• Improves understanding of failure mechanisms in battery systems

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Patent Abstract

The invention relates to a method for determining the cycle stability of battery components, wherein according to the invention a battery is used whose electrodes are segmented by insulating elements, and in which the individual segments of the electrodes can be switched as active or passive during cycling. The battery is typically cycled multiple times, with the interconnection of the segments being changed at least once. The determination of cycle stability itself is carried out by recording characteristic parameters, for example via discharge curves or via impedance measurements, respectively before and after a change in the interconnection of individual segments for the different cycles, the comparison of which then provides information about the type and magnitude of degradation of the individual battery components.