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author:

Zhong, Shuiping (Zhong, Shuiping.) [1] | Liu, Hongyu (Liu, Hongyu.) [2] | Yang, Lei (Yang, Lei.) [3] | Weng, Wei (Weng, Wei.) [4] | Tan, Wen (Tan, Wen.) [5]

Indexed by:

EI Scopus SCIE

Abstract:

Coating a carbon layer on the surface of the current collector can enhance the performance of lithium-ion batteries by improving the interfacial conductivity and the adhesion of the active material. However, traditional carbon-coated copper foil uses hydrophobic graphite as the conductive material, which has poor dispersion and adhesion to the binder, and the preparation process requires the use of environmentally harmful organic solvents. In this work, carboxylated carbon nanosheets (CCN) are synthesized via a simplified ball-milling method utilizing graphite and dry ice as starting materials, and a water-based carbon slurry is formulated, employing environmentally friendly deionized water as the solvent. By coating the CCN-coated copper foil surface with a commercially proportioned graphite slurry, we fabricate electrodes that exhibit exceptional rate performance and cycle stability. In situ impedance combined with the distribution of relaxation times analysis reveals that the CCN layer between the active material and the copper foil not only ensures a stable and fast conductive connection but also reduces side reactions caused by uneven lithiation. This work provides insights into the rational design of battery structures and the preparation of environmentally friendly carbon slurries.

Keyword:

carbon-coated copperfoil conductivelayer current collector lithium-ion battery surface modification

Community:

  • [ 1 ] [Zhong, Shuiping]Fuzhou Univ, Zijin Sch Geol & Min, Fuzhou 350108, Peoples R China
  • [ 2 ] [Liu, Hongyu]Fuzhou Univ, Zijin Sch Geol & Min, Fuzhou 350108, Peoples R China
  • [ 3 ] [Weng, Wei]Fuzhou Univ, Zijin Sch Geol & Min, Fuzhou 350108, Peoples R China
  • [ 4 ] [Tan, Wen]Fuzhou Univ, Zijin Sch Geol & Min, Fuzhou 350108, Peoples R China
  • [ 5 ] [Zhong, Shuiping]Fuzhou Univ, Fujian Key Lab Green Extract & High Value Utilizat, Fuzhou 350108, Peoples R China
  • [ 6 ] [Weng, Wei]Fuzhou Univ, Fujian Key Lab Green Extract & High Value Utilizat, Fuzhou 350108, Peoples R China
  • [ 7 ] [Tan, Wen]Fuzhou Univ, Fujian Key Lab Green Extract & High Value Utilizat, Fuzhou 350108, Peoples R China
  • [ 8 ] [Zhong, Shuiping]Zijin Min Grp Co Ltd, State Key Lab Comprehens Utilizat Low Grade Refrac, Shanghang 364200, Fujian, Peoples R China
  • [ 9 ] [Yang, Lei]Fuzhou Univ, Sch Mat Sci & Engn, Fuzhou 350108, Peoples R China

Reprint 's Address:

  • [Tan, Wen]Fuzhou Univ, Zijin Sch Geol & Min, Fuzhou 350108, Peoples R China;;[Tan, Wen]Fuzhou Univ, Fujian Key Lab Green Extract & High Value Utilizat, Fuzhou 350108, Peoples R China

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Source :

ACS APPLIED MATERIALS & INTERFACES

ISSN: 1944-8244

Year: 2025

Issue: 7

Volume: 17

Page: 10593-10602

8 . 5 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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