Lee, Byoung-Sun Cui, Shuang Xing, Xing Liu, Haodong Yue, Xiujun Petrova, Victoria Lim, Hee-Dae Chen, Renkun Liu, Ping 2024-01-19T21:30:55Z 2024-01-19T21:30:55Z 2021-09-04 2018-11-14 1944-8244 https://pubs.kist.re.kr/handle/201004/120682 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. English American Chemical Society LITHIUM-SULFUR BATTERY DOPED CARBON DOTS SOLID-STATE ALKALINE BATTERIES EXCHANGE MEMBRANES HIGH-CAPACITY PERFORMANCE POLYACRYLONITRILE ELECTROLYTE CATHODE Dendrite Suppression Membranes for Rechargeable Zinc Batteries Article 10.1021/acsami.8b14022 1 ACS Applied Materials & Interfaces, v.10, no.45, pp.38928 - 38935 ACS Applied Materials & Interfaces 10 45 38928 38935 scie scopus 000451100500029 2-s2.0-85056509006 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article LITHIUM-SULFUR BATTERY DOPED CARBON DOTS SOLID-STATE ALKALINE BATTERIES EXCHANGE MEMBRANES HIGH-CAPACITY PERFORMANCE POLYACRYLONITRILE ELECTROLYTE CATHODE aqueous battery separator dendrite growth suppression zinc battery ion flux distribution single-ion transport