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Self-Assembled VS4 Hierarchitectures with Enhanced Capacity and Stability for Sodium Storage
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作者 siling cheng Kaitong Yao +7 位作者 Kunxiong Zheng Qifei Li Dong Chen Yu Jiang Weiling Liu Yuezhan Feng Xianhong Rui Yan Yu 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2022年第2期592-598,共7页
Sodium-ion batteries(SIBs)have become an auspicious candidate for largescale energy storage by cause of low cost,natural abundance,and similar working principle with lithium-ion batteries(LIBs).At present,there is an ... Sodium-ion batteries(SIBs)have become an auspicious candidate for largescale energy storage by cause of low cost,natural abundance,and similar working principle with lithium-ion batteries(LIBs).At present,there is an urgent need to explore superior anode materials with rapid and stable sodiation/desodiation.Herein,3D self-assembled VS4 curly nanosheets hierarchitectures(VS4-CN-Hs)are developed for SIB anodes,where VS4 possesses a large theoretical sodium storage capacity,and the building block of nanosheets has large exposed surface area to the electrolyte as well as the constructed hierarchitectures can provide abundant buffer space to alleviate the volume expansion.As a result,VS4-CN-Hs anode possesses excellent electrochemical performance under a wide voltage window of 0.01–3.0 V,such as high reversible capacity of 863 mA h g^(−1) at 0.1 A g^(−1),marvelous rate feature(444 mA h g^(−1) at 10 A g^(−1)),and extralong cycle stability(386 mA h g^(−1) after 1000 times at 5 A g^(−1)). 展开更多
关键词 3D hierarchitecture anode material high rate capability sodium-ion battery vanadium tetrasulfide
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