Li5.5PS4.5Cl1.5-Based All-Solid-State Battery with a Silver Nanoparticle-Modified Graphite Anode for Improved Resistance to Overcharging and Increased Energy Density
All-solid-state lithium batteries (ASSLBs) are attracting tremendous attention due to their improved safety and higher energy density. However, the use of a metallic lithium anode poses a major challenge due to its low stability and processability. Instead, the graphite anode exhibits high reversibility for the insertion/deinsertion of lithium ions, giving ASSLBs excellent cyclic stability but a lower energy density. To increase the energy density of ASSLBs with the graphite anode, it is necessary to lower the negative/positive (N/P) capacity ratio and to increase the charging voltage. These strategies bring new challenges to lithium metal plating and dendrite growth. Here, a nano-Ag-modified graphite composite electrode (AgGr) is developed to overcome these shortcomings for Li5.5PS4.5Cl1.5-based ASSLBs. The Ag@Gr composite exhibits a strong ability to inhibit lithium metal plating and fast lithium-ion transport kinetics. Ag nanoparticles can accommodate excess Li, and the as-obtained Li-Ag alloy enhances the kinetics of the composite electrode. The ASSLB with the Li(Ni0.8Co0.1Mn0.1)O2 cathode and Ag@Gr anode achieves an energy density of 349 W h kg-1. The full cell using Ag@Gr with an N/P ratio of 0.6 also highlights the rate performance. This work provides a simple and effective method to regulate the charge transport kinetics of graphite anodes and improve the cyclic performance and energy density of ASSLBs.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2024 |
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Erschienen: |
2024 |
Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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Enthalten in: |
ACS applied materials & interfaces - (2024) vom: 16. Apr. |
Sprache: |
Englisch |
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Beteiligte Personen: |
Pang, Bo [VerfasserIn] |
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Links: |
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Themen: |
Agyrodite solid electrolyte |
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Anmerkungen: |
Date Revised 16.04.2024 published: Print-Electronic Citation Status Publisher |
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doi: |
10.1021/acsami.4c01172 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM371130301 |
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520 | |a All-solid-state lithium batteries (ASSLBs) are attracting tremendous attention due to their improved safety and higher energy density. However, the use of a metallic lithium anode poses a major challenge due to its low stability and processability. Instead, the graphite anode exhibits high reversibility for the insertion/deinsertion of lithium ions, giving ASSLBs excellent cyclic stability but a lower energy density. To increase the energy density of ASSLBs with the graphite anode, it is necessary to lower the negative/positive (N/P) capacity ratio and to increase the charging voltage. These strategies bring new challenges to lithium metal plating and dendrite growth. Here, a nano-Ag-modified graphite composite electrode (AgGr) is developed to overcome these shortcomings for Li5.5PS4.5Cl1.5-based ASSLBs. The Ag@Gr composite exhibits a strong ability to inhibit lithium metal plating and fast lithium-ion transport kinetics. Ag nanoparticles can accommodate excess Li, and the as-obtained Li-Ag alloy enhances the kinetics of the composite electrode. The ASSLB with the Li(Ni0.8Co0.1Mn0.1)O2 cathode and Ag@Gr anode achieves an energy density of 349 W h kg-1. The full cell using Ag@Gr with an N/P ratio of 0.6 also highlights the rate performance. This work provides a simple and effective method to regulate the charge transport kinetics of graphite anodes and improve the cyclic performance and energy density of ASSLBs | ||
650 | 4 | |a Journal Article | |
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650 | 4 | |a silver nanoparticle | |
650 | 4 | |a solid lithium battery | |
700 | 1 | |a Yang, Tianqi |e verfasserin |4 aut | |
700 | 1 | |a Wu, Zhan |e verfasserin |4 aut | |
700 | 1 | |a Li, Zuguang |e verfasserin |4 aut | |
700 | 1 | |a Jin, Zheyu |e verfasserin |4 aut | |
700 | 1 | |a Zhang, Wenkui |e verfasserin |4 aut | |
700 | 1 | |a Xia, Yang |e verfasserin |4 aut | |
700 | 1 | |a Huang, Hui |e verfasserin |4 aut | |
700 | 1 | |a He, Xinping |e verfasserin |4 aut | |
700 | 1 | |a Gan, Yongping |e verfasserin |4 aut | |
700 | 1 | |a Xia, Xinhui |e verfasserin |4 aut | |
700 | 1 | |a Zhang, Jun |e verfasserin |4 aut | |
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