Lithiophilic and Anticorrosive Cu Current Collector via Dual-Bonded Porous Polymer Coating for Stable Lithium-Metal Batteries

Long Chen; Gen Chen; Xiaohui Lin; Zhicheng Zheng; Zuxin Wen; Dan Wu; Zheng Weng; Ning Zhang; Xiaohe Liu; Renzhi Ma

doi:10.1021/acsami.2c21612

journal article·2023-02-22

Lithiophilic and Anticorrosive Cu Current Collector via Dual-Bonded Porous Polymer Coating for Stable Lithium-Metal Batteries

Long Chen, Gen Chen, Xiaohui Lin, Zhicheng Zheng, Zuxin Wen, Dan Wu, Zheng Weng, Ning Zhang, Xiaohe Liu, Renzhi Ma

ACS Applied Materials & Interfaces· Volume 15· Issue 7

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Source abstract

Abstract

Li metal is the ultimate anode material for next-generation high-energy-density rechargeable batteries. However, the uncontrollable growth of Li dendrites and low Coulombic efficiency (CE) prevent it from practical applications in Li metal batteries (LMBs). Here, a facile and low-cost strategy is developed to decorate a Cu current collector with a self-assembled γ-aminopropyltrimethoxysilane (γ-APS) film. The thin polymer film with nanopores promotes the formation of cobblestone-like Li deposition and suppresses Li-dendrite formation due to its low surface energy. The protecting layer not only increases the lithiophilicity of the Cu current collector but also alleviates the ambient corrosion and galvanic corrosion in practical use. Owing to these advantages, the half cell using γ-APS-Cu collectors exhibits a high average CE value of 99.2% for 100 cycles. The symmetric cell of γ-APS-Cu@Li shows an improved lifespan of 1400 h with a small voltage hysteresis of 12 mV at 0.5 mA cm –2 . The full cell assembled with LiFePO 4 (LFP) cathodes and γ-APS-Cu@Li anodes delivers a high capacity of 136 mAh g –1 after 600 cycles at 0.5C.

Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage Metals & alloys Polymers Nanomaterials Materials processing

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

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

Affiliations

School of Materials Science and Engineering, Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province, Central South University, Changsha 410083, P. R. China

Hunan Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China

Zhongyuan Critical Metals Laboratory and School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China

International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan

Funding

Natural Science Foundation for Distinguished Young Scholars of Hunan Province · National Natural Science Foundation of China · 100 Talented program of Hunan Province · Central South University Innovation-Driven Research Programme

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