{"title":"Towards practical Li-ion full batteries with glass anodes","authors":"Kai Zheng , Lanxiang Chen , Zhitao Shan , Jiayan Zhang , Chengwei Gao , Yuanzheng Yue , Yanfei Zhang","doi":"10.1016/j.nanoen.2024.109950","DOIUrl":null,"url":null,"abstract":"<div><p>Vanadium (V)-based glasses have recently garnered considerable attention as promising anode materials for lithium-ion batteries (LIBs) due to their abundance of Li<sup>+</sup> storage sites, neglectable volume expansion upon lithiation/delithiation, and facile preparation. However, the inherently low electronic conductivity and relatively low energy density of V-based glass anodes hinder its application in full LIBs. In this work, we tackled this challenge by optimizing the chemical composition of the V-based glass anode to achieve high-performance half and full cells. We investigated the impact of partially substituting B<sub>2</sub>O<sub>3</sub> for P<sub>2</sub>O<sub>5</sub> in 50V<sub>2</sub>O<sub>5</sub>-(50-x)P<sub>2</sub>O<sub>5</sub>-xB<sub>2</sub>O<sub>3</sub> (mol%) (VPB) glass series on its structure and electrochemical performances. The glass with 30 mol% B<sub>2</sub>O<sub>3</sub> (VPB30 glass) was found to deliver the highest electronic conductivity, an enhanced reversible capacity of 470 mA h g<sup>−1</sup> at 1 A g<sup>−1</sup> after 500 cycles, and an excellent rate capability. The optimized performances were ascribed to the boosted lithium-ion diffusivity and the increased lithium storage sites. We assembled a full cell by coupling a VPB30 glass anode with a LiCoO<sub>2</sub> cathode to test its cycling performance. The VPB30//LiCoO<sub>2</sub> cell exhibits the required power density, and hence, high practicality. Our work implied the practical application of glass anodes in high-performance LIBs.</p></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":16.8000,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2211285524006992/pdfft?md5=94f05ef1824914ce74e27dc3e6e38596&pid=1-s2.0-S2211285524006992-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Energy","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2211285524006992","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Vanadium (V)-based glasses have recently garnered considerable attention as promising anode materials for lithium-ion batteries (LIBs) due to their abundance of Li+ storage sites, neglectable volume expansion upon lithiation/delithiation, and facile preparation. However, the inherently low electronic conductivity and relatively low energy density of V-based glass anodes hinder its application in full LIBs. In this work, we tackled this challenge by optimizing the chemical composition of the V-based glass anode to achieve high-performance half and full cells. We investigated the impact of partially substituting B2O3 for P2O5 in 50V2O5-(50-x)P2O5-xB2O3 (mol%) (VPB) glass series on its structure and electrochemical performances. The glass with 30 mol% B2O3 (VPB30 glass) was found to deliver the highest electronic conductivity, an enhanced reversible capacity of 470 mA h g−1 at 1 A g−1 after 500 cycles, and an excellent rate capability. The optimized performances were ascribed to the boosted lithium-ion diffusivity and the increased lithium storage sites. We assembled a full cell by coupling a VPB30 glass anode with a LiCoO2 cathode to test its cycling performance. The VPB30//LiCoO2 cell exhibits the required power density, and hence, high practicality. Our work implied the practical application of glass anodes in high-performance LIBs.
期刊介绍:
Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem.
Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.