Al2O3包覆Li1.2Mn0.54Ni0.13Co0.13O2富锂正极材料的电化学性能

Al₂O₃包覆Li_1.2Mn_0.54Ni_0.13Co_0.13O₂富锂正极材料的电化学性能

左成, 杜云慧, 张鹏, 王玉洁, 曹海涛

Electrochemical Performance of Li_1.2Mn_0.54Ni_0.13Co_0.13O₂ Lithium-enriched Cathode Materials Coated with Al₂O₃

ZUO Cheng, DU Yunhui, ZHANG Peng, WANG Yujie, Cao Haitao

表2 不同Al₂O₃包覆量富锂正极材料的首次充放电性能

Table 2 First charge/discharge parameter of sample with different Al₂O₃ coating amounts

Coating amount

/%, mass fraction

1st charging specificcapacity

/mAh·g^-1

1st dischargingspecific capacity/mAh·g^-1

Irreversiblecapacity loss/mAh·g^-1

Coulomb efficiency

pristine

297.7

213.7

71.8%

0.7%

330.1

251.3

78.8

76.1%

1.4%

303.7

220.9

82.8

72.7%