Electrochemical Battery Lifespan Management System and Method Using Optimal Synthetic Surface Pressure Excitation

Electrochemical Battery Management System Using Piezoelectric Synthetic Surface Pressure Excitation for Lifespan Extension

This technology analyzes real-time battery characteristics (temperature, impedance, state of health, etc.) and actively applies a "synthetic surface pressure" to the battery via piezoelectric elements. This pressure incorporates high-frequency (for anode/cathode impedance), low-frequency (for volume changes during charge/discharge), and ultra-low-frequency (for cycle-based degradation) components to control interfacial resistance and improve battery lifespan.

Internal volume changes and the reduction of separator pores during battery charge/discharge and degradation (such as SEI layer growth) increase interfacial resistance, leading to performance degradation and shortened battery life. Conventional static load methods have struggled to effectively address these dynamic changes.

This technology includes a battery characteristic measurement unit and a piezoelectric-based synthetic surface pressure application unit. By simultaneously applying ultrasonic-range high-frequency surface pressure and low/ultra-low-frequency surface pressure linked to charge/discharge cycles based on the battery's state, it can be used to reliably secure the properties required for secondary battery anode materials.

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Key Features:

• Battery characteristic measurement unit that measures properties such as temperature and impedance of electrochemical batteries
• Synthetic surface pressure application unit that determines optimal frequency and amplitude based on measured characteristic information
• Configuration for applying synthetic surface pressure, including high-frequency and low-frequency surface pressure, to electrochemical batteries
• Configuration for determining excitation conditions based on characteristic information including battery temperature, impedance, and state of health

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