锂离子电池中,MgH2用作电池负极活性物,LiBH用作固体电解质,在负极充电时MgH2+2Li++2e-1放电时Mg+2LiH,反应反复进行,理论容量为2 000Ah/kg。然而这种转换的可逆性差,往往不可能恢复到原来状态,初次充电后容量只达1 480Ah/kg,而充放电20次后放电量只达500Ah/kg。日本广岛大学市 In lithium-ion batteries, MgH2 is used as the negative electrode active material of the battery, while LiBH is used as the solid electrolyte. When the negative electrode is charged, Mg + 2LiH is discharged when MgH2 + 2Li ++ 2e-1 ’’ is discharged. The theoretical capacity is 2 000 Ah / kg. However, the reversibility of this conversion is poor, and it is often impossible to return to the original state. After initial charge, the capacity reaches only 1 480 Ah / kg, and after 20 charge and discharge cycles, the discharge capacity is only 500 Ah / kg. Hiroshima University in Japan