Dendrite Suppression Membranes for Rechargeable Zinc Batteries
- Authors
- Lee, Byoung-Sun; Cui, Shuang; Xing, Xing; Liu, Haodong; Yue, Xiujun; Petrova, Victoria; Lim, Hee-Dae; Chen, Renkun; Liu, Ping
- Issue Date
- Nov-2018
- Publisher
- AMER CHEMICAL SOC
- Keywords
- aqueous battery separator; dendrite growth suppression; zinc battery; ion flux distribution; single-ion transport
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.10, no.45, pp.38928 - 38935
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 10
- Number
- 45
- Start Page
- 38928
- End Page
- 38935
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/187550
- DOI
- 10.1021/acsami.8b14022
- ISSN
- 1944-8244
- Abstract
- Aqueous batteries with zinc metal anodes are promising alternatives to Li-ion batteries for grid storage because of their abundance and benefits in cost, safety, and nontoxicity. However, short cyclability due to zinc dendrite growth remains a major obstacle. Here, we report a cross-linked polyacrylonitrile (PAN)-based cation exchange membrane that is low cost and mechanically robust. Li2S3 reacts with PAN, simultaneously leading to cross-linking and formation of sulfur-containing functional groups. Hydrolysis of the membrane results in the formation of a membrane that achieves preferred cation transport and homogeneous ionic flux distribution. The separator is thin (30 mu m-thick), almost 9 times stronger than hydrated Nafion, and made of low-cost materials. The membrane separator enables exceptionally long cyclability (>350 cycles) of Zn/Zn symmetric cells with low polarization and effective dendrite suppression. Our work demonstrates that the design of new separators is a fruitful pathway to enhancing the cyclability of aqueous batteries.
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