DataVXAdvanced Energy MaterialsPaper
journal article·2019-11

Potassium Metal Batteries: Artificial Solid‐Electrolyte Interphase Enabled High‐Capacity and Stable Cycling Potassium Metal Batteries (Adv. Energy Mater. 43/2019)

Huwei Wang, Junyang Hu, Jiahui Dong, Kah Chun Lau, Lei Qin, Yu Lei, Baohua Li, Dengyun Zhai, Yiying Wu, Feiyu Kang

Advanced Energy Materials· Volume 9· Issue 43
Publisher page
Source abstract

Abstract

In article number 1902697, Dengyun Zhai, Feiyu Kang, and co-workers develop a simple approach to artificial solid electrolyte interface (SEI) design for the K metal anode by covering an aligned carbon nanotube (CNT) film on the surface of the K metal anode. The interface conjugation between the K anode and CNT accompanies the spontaneous reduction of electrolyte and potassiation of CNT. The so-formed potassiophilic CNT framework with an extremely stable SEI layer alters the K deposition behavior and enables a non-dendritic growth of K metal at both ultrahigh deposition capacities and high current densities. The benefits of the on-site spontaneous processes shed new light on the design principles of artificial SEI for alkali metal anodes.
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Research context

Energy storageNanomaterialsMaterials processing

OpenAlex topics: Advanced Battery Materials and Technologies · Fuel Cells and Related Materials · Advancements in Battery Materials

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Affiliations

Shenzhen Environmental Science and New Energy Technology Engineering Laboratory Tsinghua‐Berkeley Shenzhen Institute (TBSI) Tsinghua University Shenzhen 518055 China

Advanced Materials Institute Graduate School at Shenzhen Tsinghua University Shenzhen 518055 China

Department of Physics and Astronomy California State University Northridge 18111 Nordhoff Street Northridge CA 91330‐8268 USA

Department of Chemistry and Biochemistry The Ohio State University 151 West Woodruff Avenue Columbus OH 43210 USA

Shenzhen Key Laboratory for Graphene‐Based Materials and Engineering Laboratory for Functionalized Carbon Materials Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 China

References

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