首页|Rational design of carbon skeleton interfaces for highly reversible sodium metal battery anodes

Rational design of carbon skeleton interfaces for highly reversible sodium metal battery anodes

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Sodium metal batteries(SMBs)have attracted increasing attention over time due to their abundance of sodium resources and low cost.However,the widespread application of SMBs as a viable technology remains a great challenge,such as uneven metallic deposition and dendrite formation during cycling.Carbon skeletons as sodiophilic hosts can alleviate the dendrite formation during the plating/stripping.For the carbon skeleton,how to rationalize the design sodiophilic interfaces between the sodium metal and carbon species remains key to developing desirable Na anodes.Herein,we fabricated four kinds of structural features for carbon skeletons using conventional calcination and flash Joule heating.The roles of conductivity,defects,oxygen content,and the distribution of graphite for the deposition of metallic sodium were discussed in detail.Based on interface engineering,theJ1600 electrode,which has abundant Na-C species on its surface,showed the highest sodiophilic.There are uniform and rich F-Na species dis-tributed in the inner solid electrolyte interface layer.This study investigated the different Na-deposition behavior in carbon hosts with distinct graphitic arrangements to pave the way for designing and optimiz-ing advanced electrode materials.

Carbon skeletonGraphited structureDeposition mechanismSodium metal batteries

Fenqiang Luo、Taiyu Lyu、Jie Liu、Peiwan Guo、Junkai Chen、Xiaoshan Feng、Dechao Wang、Zhifeng Zheng

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Key Laboratory of Advanced Energy Storage Technology,Fujian Province University,Fujian Provincial Industry Technologies Development Base for New Energy,Collaborative Innovation Platform for Advanced Electrochemical Energy Storage Technology,National User-Side Energy Storage Innovation Research and Development Center,Tan Kah Kee Innovation Laboratory(IKKEM),College of Energy,Xiamen University,Xiamen 361102,Fujian,China

Department of Chemical Engineering,Tsinghua University,Beijing 100084,China

College of Environmental Science and Engineering,Fujian Normal University,Fuzhou 350007,Fujian,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaScience and Technology Plan of Fujian Provincial,ChinaScience and Technology Plan of Fujian Provincial,ChinaScience and Technology Plan of Fujian Provincial,ChinaScience and Technology Plan of Fujian Provincial,ChinaScientific Research Startup Funding for Special Professor of Minjiang Scholarsresearch group of Prof.Peifeng Su of the State Key Laboratory of Physical Chemistry of Solid Surfaces,College of Chemistry a

32271799318705703502ZCQXT20220012020H40262022G020202022H6002361005

2024

10.1016/j.jechem.2023.12.006

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.92(5)