Voltage Response Simulation of High Power Density Type Lithium-Ion Secondary Battery for Pulse Current Charge/Discharge

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  • 高出力タイプリチウムイオン二次電池のパルス充放電時の電圧応答シミュレーション
  • コウシュツリョク タイプ リチウム イオン 2ジ デンチ ノ パルスジュウホウデンジ ノ デンアツ オウトウ シミュレーション

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Abstract

Calculations of transient cell voltage response of a high power density type lithium-ion secondary battery are carried out for high-rate and pulse-wave charge/discharge current by using the numerical simulation method already proposed and developed by the authors. In order to confirm the validity of the simulation method, the numerically obtained transient cell voltage responses are compared with the corresponding experimental findings under various conditions. As a result, it is successfully demonstrated that the calculated transient responses coincide well with those obtained through measurements in all cases. This indicates the usefulness of the numerical simulation method of transient cell voltage response proposed and developed by the authors, because it can calculate the transient cell voltage response with sufficient accuracy even in the case a high power density type battery experiences high-rate and pulse-wave charge/discharge current.

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