Non-flammable solvent-free liquid polymer electrolyte for lithium metal batteries
Abstract As a replacement for highly flammable and volatile organic liquid electrolyte, solid polymer electrolyte shows attractive practical prospect in high-energy lithium metal batteries. However, unsatisfied interface performance and ionic conductivities are two critical challenges. A common stra...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-08-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-40394-8 |
| _version_ | 1797752732527886336 |
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| author | Guo-Rui Zhu Qin Zhang Qing-Song Liu Qi-Yao Bai Yi-Zhou Quan You Gao Gang Wu Yu-Zhong Wang |
| author_facet | Guo-Rui Zhu Qin Zhang Qing-Song Liu Qi-Yao Bai Yi-Zhou Quan You Gao Gang Wu Yu-Zhong Wang |
| author_sort | Guo-Rui Zhu |
| collection | DOAJ |
| description | Abstract As a replacement for highly flammable and volatile organic liquid electrolyte, solid polymer electrolyte shows attractive practical prospect in high-energy lithium metal batteries. However, unsatisfied interface performance and ionic conductivities are two critical challenges. A common strategy involves introducing organic solvents or plasticizers, but this violates the original intention of security design. Here, an electrolyte concept called liquid polymer electrolyte without any small molecular solvents is proposed for safe and high-performance batteries, based on the design of a room-temperature liquid-state brush-like polymer as the sole solvent of lithium salts. This liquid polymer electrolyte is non-flammable and exhibits high ionic conductivity (1.09 $$\times$$ × 10−4 S cm−1 at 25 °C), significant lithium dendrite suppression, and stable long-term cycling over a wide operating temperature range ( ≥ 1000 cycles at 60 °C and 90 °C). Moreover, the pouch cell can resist thermal abuse, vacuum environment, and mechanical abuse. This electrolyte and design strategy are expected to provide enlightening ideas for the development of safe and high-performance polymer electrolytes. |
| first_indexed | 2024-03-12T17:07:42Z |
| format | Article |
| id | doaj.art-ef647bcf238147989d12477ecf824640 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-12T17:07:42Z |
| publishDate | 2023-08-01 |
| publisher | Nature Portfolio |
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| series | Nature Communications |
| spelling | doaj.art-ef647bcf238147989d12477ecf8246402023-08-06T11:18:41ZengNature PortfolioNature Communications2041-17232023-08-0114111210.1038/s41467-023-40394-8Non-flammable solvent-free liquid polymer electrolyte for lithium metal batteriesGuo-Rui Zhu0Qin Zhang1Qing-Song Liu2Qi-Yao Bai3Yi-Zhou Quan4You Gao5Gang Wu6Yu-Zhong Wang7The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan UniversityThe Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan UniversityThe Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan UniversityThe Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan UniversityThe Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan UniversityThe Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan UniversityThe Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan UniversityThe Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan UniversityAbstract As a replacement for highly flammable and volatile organic liquid electrolyte, solid polymer electrolyte shows attractive practical prospect in high-energy lithium metal batteries. However, unsatisfied interface performance and ionic conductivities are two critical challenges. A common strategy involves introducing organic solvents or plasticizers, but this violates the original intention of security design. Here, an electrolyte concept called liquid polymer electrolyte without any small molecular solvents is proposed for safe and high-performance batteries, based on the design of a room-temperature liquid-state brush-like polymer as the sole solvent of lithium salts. This liquid polymer electrolyte is non-flammable and exhibits high ionic conductivity (1.09 $$\times$$ × 10−4 S cm−1 at 25 °C), significant lithium dendrite suppression, and stable long-term cycling over a wide operating temperature range ( ≥ 1000 cycles at 60 °C and 90 °C). Moreover, the pouch cell can resist thermal abuse, vacuum environment, and mechanical abuse. This electrolyte and design strategy are expected to provide enlightening ideas for the development of safe and high-performance polymer electrolytes.https://doi.org/10.1038/s41467-023-40394-8 |
| spellingShingle | Guo-Rui Zhu Qin Zhang Qing-Song Liu Qi-Yao Bai Yi-Zhou Quan You Gao Gang Wu Yu-Zhong Wang Non-flammable solvent-free liquid polymer electrolyte for lithium metal batteries Nature Communications |
| title | Non-flammable solvent-free liquid polymer electrolyte for lithium metal batteries |
| title_full | Non-flammable solvent-free liquid polymer electrolyte for lithium metal batteries |
| title_fullStr | Non-flammable solvent-free liquid polymer electrolyte for lithium metal batteries |
| title_full_unstemmed | Non-flammable solvent-free liquid polymer electrolyte for lithium metal batteries |
| title_short | Non-flammable solvent-free liquid polymer electrolyte for lithium metal batteries |
| title_sort | non flammable solvent free liquid polymer electrolyte for lithium metal batteries |
| url | https://doi.org/10.1038/s41467-023-40394-8 |
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