Modification and Influence of Screen-Printed Graphene Oxide on LiNi1/3Co1/3Mn1/3O2 Ternary Cathode and Properties of Lithium Ion Battery [丝网印刷氧化石墨烯对锂离子电池LiNi1/3Co1/3Mn1/3O2三元正极的改性及性能影响]

作者：Zhang W.; Wang Y.^*; Wang D.; Lu C.; Yan X.; Huang B.

来源：Rare Metal Materials and Engineering, 2021, 50(9): 3144-3148.

• Cathode
• Graphene oxide
• LiNi1/3Co1/3Mn1/3O2
• Lithium ion battery
• Screen-printing

Electrodes consisting of LiNi1/3Co1/3Mn1/3O2, aluminum foil, conductive additives, and polyvinylidene fluoride were coated with a thin graphene oxide layer via a simple screen-printing method. The cycle performance and rate capability were tested at a cutoff voltage of 4.3 V. Results show that the capacity deceases whereas the polarization increases during the galvanostatic chargedischarge tests for primary electrodes. For the graphene-oxide-modified electrodes, the capacity decrement reduces and polarization increment rate evidently slows down. As a result, the cycle stability and rate capability are improved because the graphene oxide coating suppresses the side reactions between the LiNi1/3Co1/3Mn1/3O2 electrodes and electrolyte. The research provides an ecofriendly and highly effective strategy to improve the performance of LiNi1/3Co1/3Mn1/3O2 electrodes.

• 单位
  上海大学