DataVXACS Energy LettersPaper
journal article·2024-05-10

Na+-Enriched Quinoid Polymer Layer with Fast Ion Transport for Dendrite-Free Sodium Metal Batteries with High Cyclic Stability

Qianqian Yue, Zhen Shen, Ruijuan Shi, Qi Zhang, Luojia Liu, Dongjie Shi, Shilong Jiao, Yong Zhao

ACS Energy Letters· Volume 9· Issue 5
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Source abstract

Abstract

An unstable solid electrolyte interphase (SEI) layer on a metal electrode leads to issues of severe dendrite formation and side reactions, resulting in low cycle stability and safety hazards of metal-based batteries. Herein, a functional quinoid polymer (poly(2,5-dihydroxy-1,4-benzoquinone-3,6-methylene), PDBM) is introduced on the surface of Na/Li metal, forming a flexible and uniform polymer–salt (PDBM-Na/Li)-based SEI with Na + /Li + enriching property and low ion dissociation energy. The PDBM-Na layer enables a stable Na plating/stripping behavior with over 1200 h cycles at 2 mA cm –2 and Na∥Na 3 V 2 (PO 4 ) 3 full batteries with a capacity retention of 93% after 2400 cycles at 5 C. Equally important, a comparison study of PDBM-Na/Li layers on the cycling stability of Na/Li metals demonstrates that not only an appropriate ion adsorption energy but also a low dissociation energy is important for extending the cyclic lifespan of metal electrodes. This study provides deep insights into the structural design of functional polymers for alkaline anode protection.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storagePolymers

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

Key Lab for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, People’s Republic of China

Shanghai Battery Development Center, FinDreams Battery Company Co., Ltd., No. 999, Xiangjing Road, Songjiang, Shanghai 201611, People’s Republic of China

National Supercomputer Center in Tianjin, Tianjin 300457, People’s Republic of China

Funding

Natural Science Foundation of Henan Province · China Postdoctoral Science Foundation · National Natural Science Foundation of China · Henan Provincial Science and Technology Research Project · Key Research & Development and Promotion Project of Henan Province · Key Scientific Research Project of Higher Education in Henan Province

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