Overvoltage relaxation of lithium ion secondary batteries after current interruption

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  • LiSB電流遮断後の過電圧緩和過程
  • LiSB電流遮断後の過電圧緩和過程 : 2段分布定数回路の解析関数の導出と実電池への応用
  • LiSB デンリュウ シャダン ゴ ノ カデンアツ カンワ カテイ : 2ダン ブンプ テイスウ カイロ ノ カイセキ カンスウ ノ ドウシュツ ト ジツ デンチ エ ノ オウヨウ
  • Analytical solution of piggyback stacked dual transmission line model as an equivalent circuit of electrode for commercially available batteries
  • 2段分布定数回路の解析関数の導出と実電池への応用

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Abstract

It is well known that the lithium secondary battery (LiSB) is the most promising power source for electric vehicle (EV), the further development is still needed to assure the life and performance prediction of LiSB. Mathematical modelling of overvoltage relaxation for batteries has been carried out by applying piggyback stacked dual transmission line as an equivalent circuit of electrode for commercially available batteries. Derived functions were quite complicated. However, we succeeded to express the overvoltage relaxation after current interruption. For the overvoltage relaxation, we succeeded to obtain the accurate response within 1 mV residuals for 10 minutes relaxation by simply connecting two dual transmission line in series.

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