Adaptive ion diffusion in a highly crystalline pure polymer for stable solid-state batteries
文献类型：期刊论文
| 作者 | Xu, Shengjun1,2; Zhang, Kexin1,2; Xu, Ruogu1,2; Tang, Pei1,2; Cheng, Hui-Ming1,3; Sun, Zhenhua1,2; Li, Feng1,2 |
| 刊名 | ENERGY STORAGE MATERIALS
 |
| 出版日期 | 2025 |
| 卷号 | 74页码:10 |
| 关键词 | Adaptive ion diffusion Polyethylene oxide Polymer electrolytes Lithium filaments Solid-state batteries |
| ISSN号 | 2405-8297 |
| DOI | 10.1016/j.ensm.2024.103941 |
| 通讯作者 | Sun, Zhenhua(zhsun@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn) |
| 英文摘要 | Solid polymer electrolytes are typically designed to be amorphous and ion-rich, with fillers added to enhance ion conduction. However, lithium filament growth within these electrolytes poses a significant risk of battery failures. Here, we present findings on adaptive ion diffusion phenomena in highly crystalline, ion-free bulk poly (ethylene oxide) (PEO), involving ions such as Li+, Na+, K+, Mg2+, Zn2+, and Al3+. We developed a steady-state measurement method (SSMM) that overcomes the limitations of traditional electrochemical impedance spectroscopy, enabling the precise quantification of the adaptive diffusion coefficients in bulk PEO at various temperatures. Physicochemical and electrochemical characterizations reveal that continuous ion transport channels form through adaptive ion diffusion in bulk PEO while maintaining high crystallinity. Building on these characteristics, we proposed a solid-state electrolyte group (SSE-Group) using highly crystalline bulk PEO as an interlayer without adding fillers. This SSE-Group configuration suppresses the soft breakdown caused by lithium filament growth, improving cycle stability from 20 to 2500 h at 0.2 mA cm(-2) in symmetrical lithium cells and enabling stable cycling for over 2000 cycles at 1C in solid-state batteries. Our findings enhance the understanding of adaptive ion diffusion and dendrite suppression in highly crystalline polymers, with the potential to improve the efficiency and safety of energy storage devices. |
| 资助项目 | National Natural Science Foundation of China[22379151] ; National Natural Science Foundation of China[51972313] ; National Natural Science Foundation of China[52020105010] ; National Natural Science Foundation of China[51927803] ; National Natural Science Foundation of China[52188101] ; National Key R & D Program of China[2021YFB2800200] ; National Key R & D Program of China[2021YFB3800301] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001374697700001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; National Key R & D Program of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sun, Zhenhua; Li, Feng |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Energy Mat Carbon Neutral, Shenzhen 518055, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Shengjun,Zhang, Kexin,Xu, Ruogu,et al. Adaptive ion diffusion in a highly crystalline pure polymer for stable solid-state batteries[J]. ENERGY STORAGE MATERIALS,2025,74:10. |
| APA | Xu, Shengjun.,Zhang, Kexin.,Xu, Ruogu.,Tang, Pei.,Cheng, Hui-Ming.,...&Li, Feng.(2025).Adaptive ion diffusion in a highly crystalline pure polymer for stable solid-state batteries.ENERGY STORAGE MATERIALS,74,10. |
| MLA | Xu, Shengjun,et al."Adaptive ion diffusion in a highly crystalline pure polymer for stable solid-state batteries".ENERGY STORAGE MATERIALS 74(2025):10. |
入库方式： OAI收割
来源：金属研究所
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