Upcycling the spent graphite/LiCoO2 batteries for high-voltage graphite/LiCoPO4-co-workable dual-ion batteries

Du, Miao; Lü, Hongyan; Du, Kaidi; Zheng, Shuohang; Wang, Xiaotong; Deng, Xiaotong; Zeng, Ronghua; Wu, Xinglong

doi:10.1007/s12613-023-2807-2

Int J Miner Metall Mater

2024

DOI: 10.1007/s12613-023-2807-2

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Upcycling the spent graphite/LiCoO2 batteries for high-voltage graphite/LiCoPO4-co-workable dual-ion batteries

Miao Du,

Hongyan Lü,

Kaidi Du

et al.

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Recycling of Spent Graphite from Lithium-Ion Batteries for Aqueous Zn Dual-Ion Batteries

Cai,

Zhang,

Chen

et al. 2024

ACS Appl. Mater. Interfaces

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As lithium-ion batteries (LIBs) become more widespread, the number of spent LIBs gradually increases. Until now, recycling of spent LIBs has mainly concentrated on highvalue cathodes, but the anode graphite has not yet attracted wide attention. In this work, spent graphite from LIBs was oxidized to graphene oxide and then thermally reduced to reduced graphene oxide (RGO), which serves as the cathode of aqueous Zn dual-ion batteries (ZDIBs). The thermal reduction process enables RGO with a large layer spacing and porous structure, which increase the anion insertion sites and transfer kinetics. As a result, the corresponding battery exhibits a high specific capacity of 96.82 mAh g −1 at 1 A g −1 , superior rate capability, and a high capacity retention rate of 80% after 2000 cycles. Moreover, RGO gradually transforms into a long-range disordered structure during the cycling process, which provides more transport routes and active sites for anion insertion and thus leads to the increase of capacity. This work combines the recycling of spent graphite with aqueous ZDIBs, realizing the high-value use of spent graphite.

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Recycling of Spent Graphite from Lithium-Ion Batteries for Aqueous Zn Dual-Ion Batteries

Cai,

Zhang,

Chen

et al. 2024

ACS Appl. Mater. Interfaces

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show abstract

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Upcycling the spent graphite/LiCoO2 batteries for high-voltage graphite/LiCoPO4-co-workable dual-ion batteries

Cited by 1 publication

References 46 publications

Recycling of Spent Graphite from Lithium-Ion Batteries for Aqueous Zn Dual-Ion Batteries

Recycling of Spent Graphite from Lithium-Ion Batteries for Aqueous Zn Dual-Ion Batteries

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