| Solution Feature |
- The dismantled battery modules, obtained from retired EV battery packs, will be analyzed to identify the corresponding Open-Circuit Voltage (OCV) characteristic, available energy capacity (i.e. State-Of-Health) and other intrinsic battery parameters. These battery data will later be used to estimate the State-Of-Charge (SOC) and to monitor the battery status.
- Retired EV batteries with similar characteristics (including energy capacity (Ah), Open-Circuit Voltage (OCV) attributes, etc.) will be repacked in both parallel and series. The aim is to optimize the total usability of battery pack capacity and enhancing relevant life-span.
- A custom-made Battery Management System (BMS) will be deployed in each replaceable battery pack. It will simultaneously monitor individual battery voltages, temperature and current. These measurements will be used to estimate relevant State-Of-Charge (SOC). Further, the built-in cell-balancing mechanism will equalize the charge in each battery module.
- The proposed mobile power system mainly comprises several sets of replaceable battery packs (with embedded BMS), dc/ac inverter, safety mechanism (monitoring current leakage, overload, etc.) and embedded power control system. Initial stage power conversion will adopt multi-inputs interleaved dc/dc converter, which will subsequently be converted to stable ac output.
- The proposed mobile power system will conduct real-time monitoring of battery pack (including individual battery voltages, current, temperature, State-Of-Charge, etc.) and ac power status respectively, and transmitting these measurements via Bluetooth to a custom-made mobile APP for inspection.
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