- Volume 39 Issue 8
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Electrochemical Simulation for Limited-Discharge Current Prediction of Li-ion Secondary Cell Using High-Rate Discharge
고율 방전용 리튬 전지의 한계 방전 전류 예측을 위한 전기화학 시뮬레이션
- Kim, Simon (Dept. of Mechanical Design Engineering, Chungnam Nat'l Univ.) ;
- Lee, Young Shin (Dept. of Mechanical Design Engineering, Chungnam Nat'l Univ.)
- Received : 2015.02.10
- Accepted : 2015.06.10
- Published : 2015.08.01
Li-ion batteries are energy sources that are widely used in applications such as notebooks, cellular phones, power tools, and vehicles. They are devices in which stored chemical energy is changed to electrical energy by electrochemical reactions. They have a high energy density, small size, and are lightweight. In particular, power tools and vehicles require high charge/discharge rates. Therefore, in this paper, we perform electrochemical simulations using a commercial finite-element analysis program to determine the high discharge-rate characteristics of Li-ion cells. In addition, by performing high discharge-rate simulations, we found that the limited discharge current was 63 A. Based on the results obtained, we investigate the behavior of Li-ion cells with a high rate of discharge.
Li-ion Secondary Cell;Electrochemical Simulation;Limit Discharge Current
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