Reversible lithium storage in sp^(2) hydrocarbon frameworks

作     者：Zhangxiang Hao Junrun Feng Yiyun Liu Liqun Kang Bolun Wang Junwen Gu Lin Sheng Ruoyu Xu Sushila Marlow Dan J.L.Brett Yunhui Huang Feng Ryan Wang Zhangxiang Hao;Junrun Feng;Yiyun Liu;Liqun Kang;Bolun Wang;Junwen Gu;Lin Sheng;Ruoyu Xu;Sushila Marlow;Dan J.L.Brett;Yunhui Huang;Feng Ryan Wang

作者机构：Materials and Catalysis LaboratoryDepartment of Chemical EngineeringUniversity College LondonLondon WC1E 7JEUnited Kingdom School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina Electrochemical Innovation LabDepartment of Chemical EngineeringUniversity College LondonLondon WC1E 7JEUnited Kingdom Department of ChemistryUniversity College LondonLondon WC1H 0AJUnited Kingdom 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2022年第31卷第3期

页      面：161-167,I0006页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：funded by the Engineering and Physical Sciences Research Council(EPSRC)(EP/P02467X/1 and EP/S018204/1) the Centre for Nature Inspired Chemical Engineering(EP K038656/1) 

主　　题：Lithium-ions battery Organic anode Topological structure sp^(2)hydrocarbon 

摘      要：Polymer materials offer controllable structure-dependent performances in separation,catalysis and drug *** molecular structures can be precisely tailored to accept Li^(+)for energy storage *** the design of sp^(2)carbon-based polyphenylene(PPH)with high lithium-ion uptakes and long-term stability is ***-PPH(L-PPH)exceeds the performance of crosslink-PPH(C-PPH),due to the fact that it has an ordered lamellar structure,promoting the Li^(+)intercalation/deintercalation *** L-PPH cell shows a clear charge and discharge plateau at 0.35 and 0.15 V ***^(+)/Li,respectively,which is absent in the C-PPH *** Li^(+)storage capacity of L-PPH is five times that of the *** reversible storage capacity is further improved to 261 m Ah g;by functionalizing the L-PPH with the–SO_(3)H *** addition,the Li-intercalated structures of C-PPH and L-PPH are investigated via near-edge X-ray absorption fine structure(NEXAFS),suggesting the high reversible Li^(+)–C=C bond interaction at *** strategy,based on new insight into sp^(2)functional groups,is the first step toward a molecular understanding of the structure storage-capacity relationship in sp^(2)carbon-based polymer.