基于析氣現象和熱力學原理對鋰電池系統在臨界和非臨界情況下的動力學特性進行了較為細致的研究，建立了以荷電狀態(S O C ，S tate of C harge) 溫度開路電壓和內阻為狀態變量的系統動力學模型并應用 M atlab/S im ulink 軟件實現了相應的動態仿真 仿真結果表明，該模型不僅能反映鋰電池在非臨界情況下的動力學特性，而且在一定程度上還能較為準確地描述臨界情況的非線性動力學特性
關鍵詞：鋰電池建模；析氣現象；熱力學模型；荷電狀態；系統仿真
B ased on gassing phenom enon and therm odynam ics, the dynam ic characteristics of a Li-ion battery
system under critical and non-critical situations w ere investigated. A dynam ical m odel of battery system w as
established w ith S O C (S tate of C harge), tem perature, internal resistance and open circuit voltage as the state
variables and the corresponding dynam ic sim ulations w ere carried out by M atlab/S im ulink. T he sim ulated results
show that the m odelis suitable for both non-criticaland criticalsituations of Li-ion battery.