journal article·2021-06-11

Natural Wood Structure Inspires Practical Lithium–Metal Batteries

Yun Lu, Yutong Lu, Chengbin Jin, Runan Gao, Bo Liu, Yuxiang Huang, Yanglun Yu, Jun Ren, Yulin Deng, Xinyong Tao, Jianxiong Lyu

ACS Energy Letters· Volume 6· Issue 6
Publisher page

Abstract

High-energy-density lithium (Li)-metal batteries (LMBs) suffer from short life spans caused by “dead” Li and dendrites. The generation of a stable, artificial solid–electrolyte interphase (SEI) for spatially homogeneous Li-ion flux and rapid Li-ion transport will correspondingly solve these issues. For the first time, we exfoliate 10 nm thick, pit-membrane-like nanowood using a top-down method and designed a natural-wood-structured interface as an artificial SEI. The artificial SEI possesses nanochannels between the naturally assembled parallel cellulose molecules, which regulate Li deposition uniformity. Meanwhile, the interconnected micropores and abundant lithiophilic groups on the nanowood facilitate rapid Li-ion migration. Nanowood-protected LMBs delivered a remarkable capacity of ∼140 mAh·cm–2 and high average Coulombic efficiency of 99.6% for 800 cycles. This nanowood-based, high-performance, scalable, biomimetic SEI with ion-flux regulation represents an attractive solution to the short life span of practical LMBs.
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Research context

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China

Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China

College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China

School of Chemical & Biomolecular Engineering and RBI at Georgia Tech, Georgia Institute of Technology, Atlanta, Georgia 30332-0620, United States

Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Materials Science and Engineering College, Northeast Forestry University, Harbin 150040, China

School of Chemical Engineering and Technology, North University of China, Xueyuan Road 3, Taiyuan 030051, China

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province · Fundamental Research Funds of CAF

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