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@article{ART003047175},
author={Zou Jin and Long Xi-Xi and He Jia-Le and Yu Shi-Peng and Zhong Sheng-Wen},
title={A sandwich-like CMC-based/graphene/CMC-based conductive agent prepared from needle coke for high-performance LiFePO4 batteries},
journal={Carbon Letters},
issn={1976-4251},
year={2023},
volume={33},
number={7},
pages={2237-2251},
doi={10.1007/s42823-023-00584-2}

TY - JOUR
AU - Zou Jin
AU - Long Xi-Xi
AU - He Jia-Le
AU - Yu Shi-Peng
AU - Zhong Sheng-Wen
TI - A sandwich-like CMC-based/graphene/CMC-based conductive agent prepared from needle coke for high-performance LiFePO4 batteries
JO - Carbon Letters
PY - 2023
VL - 33
IS - 7
PB - Korean Carbon Society
SP - 2237
EP - 2251
SN - 1976-4251
AB - Liquid phase exfoliation of natural graphite is an industrially effective solution for graphene preparation. However, many countries have identified natural graphite as a strategic resource and restricted its mining. In this report, we used abundant and readily available needle coke (NC) as a graphene exfoliation precursor and sodium carboxymethyl cellulose (CMC) as a dispersant to prepare a sandwich structured conductive graphitized NC nanosheets (GNCNs) by liquid phase exfoliation, freeze-drying and high-temperature graphitization, in which a graphene layer is sandwiched between two thin CMC layers. CMC could increase the liquid absorption and retention ability of the conductive agent and improve the migration rate of lithium ions. The highly ordered graphene layer could accelerate the transmission of electrons. The GNCNs with 0.4 wt% CMC addition showed good rate performance (144.6 mAh g−1 at 5 C) and high cycle stability (96.2% after 200 cycles at 1 C) for LiFePO4 (LFP) battery. The traditional Super-P (SP) conductive agent exhibited low-rate performance (113.9 mAh g−1 at 5 C) and cycle performance (89.9% after 200 cycles at 1 C). This study offers a novel approach to selecting graphene precursors and has promising applications for conductive additives in high-performance LFP batteries.
KW - Needle coke Sodium carboxymethyl cellulose Graphene Sandwich structure LiFePO4 batteries Conductive additive
DO - 10.1007/s42823-023-00584-2
ER -

Zou Jin, Long Xi-Xi, He Jia-Le, Yu Shi-Peng and Zhong Sheng-Wen. (2023). A sandwich-like CMC-based/graphene/CMC-based conductive agent prepared from needle coke for high-performance LiFePO4 batteries. Carbon Letters, 33(7), 2237-2251.

Zou Jin, Long Xi-Xi, He Jia-Le, Yu Shi-Peng and Zhong Sheng-Wen. 2023, "A sandwich-like CMC-based/graphene/CMC-based conductive agent prepared from needle coke for high-performance LiFePO4 batteries", Carbon Letters, vol.33, no.7 pp.2237-2251. Available from: doi:10.1007/s42823-023-00584-2

Zou Jin, Long Xi-Xi, He Jia-Le, Yu Shi-Peng, Zhong Sheng-Wen "A sandwich-like CMC-based/graphene/CMC-based conductive agent prepared from needle coke for high-performance LiFePO4 batteries" Carbon Letters 33.7 pp.2237-2251 (2023) : 2237.

Zou Jin, Long Xi-Xi, He Jia-Le, Yu Shi-Peng, Zhong Sheng-Wen. A sandwich-like CMC-based/graphene/CMC-based conductive agent prepared from needle coke for high-performance LiFePO4 batteries. 2023; 33(7), 2237-2251. Available from: doi:10.1007/s42823-023-00584-2

Zou Jin, Long Xi-Xi, He Jia-Le, Yu Shi-Peng and Zhong Sheng-Wen. "A sandwich-like CMC-based/graphene/CMC-based conductive agent prepared from needle coke for high-performance LiFePO4 batteries" Carbon Letters 33, no.7 (2023) : 2237-2251.doi: 10.1007/s42823-023-00584-2

Zou Jin; Long Xi-Xi; He Jia-Le; Yu Shi-Peng; Zhong Sheng-Wen. A sandwich-like CMC-based/graphene/CMC-based conductive agent prepared from needle coke for high-performance LiFePO4 batteries. Carbon Letters, 33(7), 2237-2251. doi: 10.1007/s42823-023-00584-2

Zou Jin; Long Xi-Xi; He Jia-Le; Yu Shi-Peng; Zhong Sheng-Wen. A sandwich-like CMC-based/graphene/CMC-based conductive agent prepared from needle coke for high-performance LiFePO4 batteries. Carbon Letters. 2023; 33(7) 2237-2251. doi: 10.1007/s42823-023-00584-2

Zou Jin, Long Xi-Xi, He Jia-Le, Yu Shi-Peng, Zhong Sheng-Wen. A sandwich-like CMC-based/graphene/CMC-based conductive agent prepared from needle coke for high-performance LiFePO4 batteries. 2023; 33(7), 2237-2251. Available from: doi:10.1007/s42823-023-00584-2

Zou Jin, Long Xi-Xi, He Jia-Le, Yu Shi-Peng and Zhong Sheng-Wen. "A sandwich-like CMC-based/graphene/CMC-based conductive agent prepared from needle coke for high-performance LiFePO4 batteries" Carbon Letters 33, no.7 (2023) : 2237-2251.doi: 10.1007/s42823-023-00584-2