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| Application of poly(vinyl alcohol) conductive hydrogel electrolytes in zinc ion batteries |
| Author Name | Affiliation | E-mail | | ZHU Zhaoxuan | School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China | | | WANG Lixin | School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China | | | TANG Xiaoning | School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China | | | LI Long | School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China | | | SHI Yan | School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China | shiyan1262006@126.com | | SHAO Jiaojing | School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China | shaojiao_jing@163.com |
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| Abstract: By adding polyaniline (PANI) to improve the conductivity of poly(vinyl alcohol) (PVA) hydrogel electrolyte and introducing nano-SiO2 to form hydrogen bond interaction with the hydroxyl group in PVA, the mechanical properties, ion transport capacity, and structural stability of the electrolyte were improved. The prepared PVA/PANI/ SiO2 conductive hydrogel electrolytes showed high tensile stress (15.45 MPa), strain (516.09%), high ion mobility (0.56), ionic conductivity (0.992 mS·cm-1), and wide electrochemical window (2.56 V). A symmetrical battery using this electrolyte could achieve a stable cycle of more than 1 200 h with uniform deposition of zinc. The modified electrolyte significantly improves both the electrochemical and mechanical properties, while enhancing cycle stability and electrochemical reversibility. |
| Keywords: zinc-ion battery poly(vinyl alcohol) hydrogel electrolyte electrochemical performance polyaniline silica |
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| ZHU Zhaoxuan,WANG Lixin,TANG Xiaoning,LI Long,SHI Yan,SHAO Jiaojing.Application of poly(vinyl alcohol) conductive hydrogel electrolytes in zinc ion batteries[J].Chinese Journal of Inorganic Chemistry,2025,41(5):893-902. |
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