하이브리드 차량에 적용된 리튬폴리머배터리 전압과 온도간 상관성의 이해

초록

The battery which plays very important role in hybrid or electric vehicle is a energy storage device and good power source for the electric apparatus. In these days, Various types of LPB(Lithium Polymer Battery) are having been developed and applied to many commercial fields. But its disadvantages like high cost and short lifetime prevents to be widespread. Therefore to overcome these disadvantages is to improve the performance of LPB and estimate the exact SOC(State of Charge) value that can serve the convenience of HEV or EV users. This paper has investigated the relativities with voltage, current and temperature to suggest the SOC estimating methods of LPB applied to seires hybrid vehicle. It is expected they will give a good directives to estimate the exact SOC.