In this study, the discharge voltage behavior of electric double-layer capacitors (EDLCs) during high-g impact is studied both theoretically and experimentally. A micro-scale dynamic mechanism is proposed to describe the physical basis of the increase in the discharge voltage during a high-g impact. Based on this dynamic mechanism, a multi-field model is established, and the simulation and experimental studies of the discharge voltage increase phenomenon are conducted. From the simulation and experimental data, the relationship between the increased voltage and the high-g acceleration is revealed. An acceleration detection range of up to 10,000g is verified. The design of the device is optimized by studying the influences of the parameters, such as the electrode thickness and discharge current, on the outputs. This work opens up new avenues for the development of autonomous sensor systems based on energy storage devices and is significant for many practical applications such as in collision testing and automobile safety.

中文翻译：

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高g冲击期间双电层电容器的放电电压行为及其在自主感应高g加速度计中的应用

在这项研究中，从理论和实验上研究了双电层电容器（EDLC）在高g冲击期间的放电电压行为。提出了一种微观动力学机制来描述高g冲击过程中放电电压增加的物理基础。基于这种动力学机制，建立了一个多场模型，并对放电电压升高现象进行了仿真和实验研究。从仿真和实验数据中，可以看出增加的电压与高g加速度之间的关系。加速度检测范围高达10,000 g已验证。通过研究参数（例如电极厚度和放电电流）对输出的影响，可以优化设备的设计。这项工作为基于储能设备的自主传感器系统的开发开辟了新途径，对于许多实际应用（例如碰撞测试和汽车安全）具有重要意义。