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Graphene modulated LiMn 1.5 Ni 0.4 Cr 0.1 O 4 spinel cathode for lithium ion battery
Nano Express Pub Date : 2020-08-16 , DOI: 10.1088/2632-959x/abadda
Rajesh K Katiyar 1 , Balram Tripathi 1 , Javier Palomino 1 , Atul Tiwari 2 , Shiva Adireddy 3 , Ambesh Dixit 4 , Brad R Weiner 5 , Gerardo Morell 1 , Ram S Katiyar 1
Affiliation  

We report the development of a rechargeable lithium ion battery with homogeneous mixing of 10% of graphene oxide in active LiMn 1.5 Ni 0.4 Cr 0 . 1 O 4 cathode material for enhanced electrochemical performance. The redox behavior of the cell, which is normally too slow for practical applications, is accelerated with highly conductive graphene. Intimate mixing of the two materials is achieved by a slurry maker using an organic solution for a cathode paste. The fabricated electrode is repeatedly charged/discharge at C/10 and C/2 rates without any significant degradation in the electrochemical capacity. The gravimetric energy density of the composite cathode material exceeds that of the LiMn 1.5 Ni 0.4 Cr 0 . 1 O 4 oxide electrode in lithium-ion batteries, and the addition of graphene in active material is likely to prove advantageous in applications where weight, rather than volume, is a cr...

中文翻译:

锂离子电池用石墨烯调制的LiMn 1.5 Ni 0.4 Cr 0.1 O 4尖晶石正极

我们报告了一种可充电锂离子电池的开发,该电池可在活性LiMn 1.5 Ni 0.4 Cr 0中均匀混合10%的氧化石墨烯。1 O 4阴极材料可增强电化学性能。电池的氧化还原行为通常对于实际应用而言太慢,而导电性高的石墨烯可加速该氧化还原行为。两种材料的紧密混合是通过使用有机溶液作为阴极浆料的制浆机实现的。所制造的电极以C / 10和C / 2速率重复充电/放电,而电化学容量没有任何显着降低。复合阴极材料的重量能密度超过LiMn 1.5 Ni 0.4 Cr 0的重量能密度。锂离子电池中的1 O 4氧化物电极,
更新日期:2020-08-31
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