Advanced cathode for dual-ion batteries: Waste-to-wealth reuse of spent graphite from lithium-ion batteries

The amount of spent lithium-ion batteries (LIBs) is constantly increasing as their popularity grows. It is important to develop a recycling method that cannot only convert large amounts of waste anode graphite into high value-added products but is also simple and environmentally friendly. In this wo...

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Main Authors: Jia-Lin Yang, Xin-Xin Zhao, Wen-Hao Li, Hao-Jie Liang, Zhen-Yi Gu, Yan Liu, Miao Du, Xing-Long Wu
Format: Article
Language:English
Published: KeAi Communications Co. Ltd. 2022-01-01
Series:eScience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2667141721000227
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author Jia-Lin Yang
Xin-Xin Zhao
Wen-Hao Li
Hao-Jie Liang
Zhen-Yi Gu
Yan Liu
Miao Du
Xing-Long Wu
author_facet Jia-Lin Yang
Xin-Xin Zhao
Wen-Hao Li
Hao-Jie Liang
Zhen-Yi Gu
Yan Liu
Miao Du
Xing-Long Wu
author_sort Jia-Lin Yang
collection DOAJ
description The amount of spent lithium-ion batteries (LIBs) is constantly increasing as their popularity grows. It is important to develop a recycling method that cannot only convert large amounts of waste anode graphite into high value-added products but is also simple and environmentally friendly. In this work, spent graphite from an anode was transformed into a cathode for dual-ion batteries (DIBs) through a two-step treatment. This method enables the crystal structure and morphology of spent graphite to recover from the adverse effects of long cycling and be restored to a regular layered structure with appropriate layer spacing for anion intercalation. In addition, pyrolysis of the solid electrolyte interphase into an amorphous carbon layer prevents the electrode from degrading and improves its cycling performance. The recycled negative graphite has a high reversible capacity of 87 mAh g−1 at 200 ​mA ​g−1, and its rate performance when used as a cathode in DIBs is comparable to that of commercial graphite. This simple recycling idea turns spent anode graphite into a cathode material with attractive potential and superior electrochemical performance, genuinely achieving sustainable energy use. It also provides a new method for recovering exhausted batteries.
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spelling doaj.art-f4936e470b4e44228f3fdc26182aed672022-12-22T04:42:05ZengKeAi Communications Co. Ltd.eScience2667-14172022-01-012195101Advanced cathode for dual-ion batteries: Waste-to-wealth reuse of spent graphite from lithium-ion batteriesJia-Lin Yang0Xin-Xin Zhao1Wen-Hao Li2Hao-Jie Liang3Zhen-Yi Gu4Yan Liu5Miao Du6Xing-Long Wu7MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, PR ChinaNational & Local United Engineering Lab for Power Battery, Department of Chemistry, Northeast Normal University, Changchun, 130024, PR ChinaMOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, PR ChinaMOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, PR ChinaMOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, PR ChinaNational & Local United Engineering Lab for Power Battery, Department of Chemistry, Northeast Normal University, Changchun, 130024, PR ChinaNational & Local United Engineering Lab for Power Battery, Department of Chemistry, Northeast Normal University, Changchun, 130024, PR ChinaMOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, PR China; National & Local United Engineering Lab for Power Battery, Department of Chemistry, Northeast Normal University, Changchun, 130024, PR China; Corresponding author.The amount of spent lithium-ion batteries (LIBs) is constantly increasing as their popularity grows. It is important to develop a recycling method that cannot only convert large amounts of waste anode graphite into high value-added products but is also simple and environmentally friendly. In this work, spent graphite from an anode was transformed into a cathode for dual-ion batteries (DIBs) through a two-step treatment. This method enables the crystal structure and morphology of spent graphite to recover from the adverse effects of long cycling and be restored to a regular layered structure with appropriate layer spacing for anion intercalation. In addition, pyrolysis of the solid electrolyte interphase into an amorphous carbon layer prevents the electrode from degrading and improves its cycling performance. The recycled negative graphite has a high reversible capacity of 87 mAh g−1 at 200 ​mA ​g−1, and its rate performance when used as a cathode in DIBs is comparable to that of commercial graphite. This simple recycling idea turns spent anode graphite into a cathode material with attractive potential and superior electrochemical performance, genuinely achieving sustainable energy use. It also provides a new method for recovering exhausted batteries.http://www.sciencedirect.com/science/article/pii/S2667141721000227Spent lithium-ion batteryGraphiteReuseDual-ion batteriesCathode–electrolyte interphase
spellingShingle Jia-Lin Yang
Xin-Xin Zhao
Wen-Hao Li
Hao-Jie Liang
Zhen-Yi Gu
Yan Liu
Miao Du
Xing-Long Wu
Advanced cathode for dual-ion batteries: Waste-to-wealth reuse of spent graphite from lithium-ion batteries
eScience
Spent lithium-ion battery
Graphite
Reuse
Dual-ion batteries
Cathode–electrolyte interphase
title Advanced cathode for dual-ion batteries: Waste-to-wealth reuse of spent graphite from lithium-ion batteries
title_full Advanced cathode for dual-ion batteries: Waste-to-wealth reuse of spent graphite from lithium-ion batteries
title_fullStr Advanced cathode for dual-ion batteries: Waste-to-wealth reuse of spent graphite from lithium-ion batteries
title_full_unstemmed Advanced cathode for dual-ion batteries: Waste-to-wealth reuse of spent graphite from lithium-ion batteries
title_short Advanced cathode for dual-ion batteries: Waste-to-wealth reuse of spent graphite from lithium-ion batteries
title_sort advanced cathode for dual ion batteries waste to wealth reuse of spent graphite from lithium ion batteries
topic Spent lithium-ion battery
Graphite
Reuse
Dual-ion batteries
Cathode–electrolyte interphase
url http://www.sciencedirect.com/science/article/pii/S2667141721000227
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