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锂离子电池失效的重要原因是活性物质( B )消耗。A.可逆 B.不可逆 C.没有 D.过多45.铅酸电池正极板材料是( )。 A. 铅 B. 二氧化铅 C. 硫酸铅 D. 硫酸46.铅酸电池单体的额定电压为( C )。 A.3.6V B.12V C.2V D.3.2V
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