Efficient room-temperature solid-state lithium ion conductors enabled by mixed-graft block copolymer architectures
Fast lithium ion (Li+) transport in solid-state polymer-matrix conductors is in desperate demand in a wide range of room-temperature scenarios but remains a formidable challenge. Herein, we designed a class of solid-state electrolytes based on mixed-graft block copolymers (mGBCPs) containing short p...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-08-01
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| Series: | Giant |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666542520300308 |
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| author | Xiaoyu Ji Mengxue Cao Xiaowei Fu Ruiqi Liang An N. Le Qiuting Zhang Mingjiang Zhong |
| author_facet | Xiaoyu Ji Mengxue Cao Xiaowei Fu Ruiqi Liang An N. Le Qiuting Zhang Mingjiang Zhong |
| author_sort | Xiaoyu Ji |
| collection | DOAJ |
| description | Fast lithium ion (Li+) transport in solid-state polymer-matrix conductors is in desperate demand in a wide range of room-temperature scenarios but remains a formidable challenge. Herein, we designed a class of solid-state electrolytes based on mixed-graft block copolymers (mGBCPs) containing short poly(ethylene oxide) (PEO) and polydimethylsiloxane (PDMS) side chains. The strong immiscibility of PEO and PDMS resulted in the formation of ordered phase-separated nanostructures. Diverse morphologies, including double gyroids, hexagonally perforated lamellae, hexagonally packed cylinders, and lamellae, were observed at different volume fractions of PEO/PDMS blocks. The impact of chain mobility of PEO on Li+ transport was investigated by varying the length of PEO side chains and blending with free PEO chains. We demonstrated that physically blending mGBCPs with free amorphous PEO chains significantly facilitated the Li+ conduction, and a solid-state electrolyte with room-temperature conductivity up to 2.0 × 10−4 S/cm was prepared. |
| first_indexed | 2024-12-12T19:14:08Z |
| format | Article |
| id | doaj.art-43d3d38890614284b67a6330643fcdcd |
| institution | Directory Open Access Journal |
| issn | 2666-5425 |
| language | English |
| last_indexed | 2024-12-12T19:14:08Z |
| publishDate | 2020-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Giant |
| spelling | doaj.art-43d3d38890614284b67a6330643fcdcd2022-12-22T00:14:46ZengElsevierGiant2666-54252020-08-013100027Efficient room-temperature solid-state lithium ion conductors enabled by mixed-graft block copolymer architecturesXiaoyu Ji0Mengxue Cao1Xiaowei Fu2Ruiqi Liang3An N. Le4Qiuting Zhang5Mingjiang Zhong6Department of Chemical and Environmental Engineering, Yale University, New Haven, CT 06511, USA; Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaDepartment of Chemical and Environmental Engineering, Yale University, New Haven, CT 06511, USADepartment of Chemical and Environmental Engineering, Yale University, New Haven, CT 06511, USA; State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, ChinaDepartment of Chemical and Environmental Engineering, Yale University, New Haven, CT 06511, USADepartment of Chemical and Environmental Engineering, Yale University, New Haven, CT 06511, USADepartment of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT 06511, USADepartment of Chemical and Environmental Engineering, Yale University, New Haven, CT 06511, USA; Department of Chemistry, Yale University, New Haven, CT 06511, USA; Corresponding author at: Department of Chemical and Environmental Engineering, Yale University, New Haven, CT 06511, USA.Fast lithium ion (Li+) transport in solid-state polymer-matrix conductors is in desperate demand in a wide range of room-temperature scenarios but remains a formidable challenge. Herein, we designed a class of solid-state electrolytes based on mixed-graft block copolymers (mGBCPs) containing short poly(ethylene oxide) (PEO) and polydimethylsiloxane (PDMS) side chains. The strong immiscibility of PEO and PDMS resulted in the formation of ordered phase-separated nanostructures. Diverse morphologies, including double gyroids, hexagonally perforated lamellae, hexagonally packed cylinders, and lamellae, were observed at different volume fractions of PEO/PDMS blocks. The impact of chain mobility of PEO on Li+ transport was investigated by varying the length of PEO side chains and blending with free PEO chains. We demonstrated that physically blending mGBCPs with free amorphous PEO chains significantly facilitated the Li+ conduction, and a solid-state electrolyte with room-temperature conductivity up to 2.0 × 10−4 S/cm was prepared.http://www.sciencedirect.com/science/article/pii/S2666542520300308Graft copolymersRoom-temperature lithium batterySolid-state electrolytes |
| spellingShingle | Xiaoyu Ji Mengxue Cao Xiaowei Fu Ruiqi Liang An N. Le Qiuting Zhang Mingjiang Zhong Efficient room-temperature solid-state lithium ion conductors enabled by mixed-graft block copolymer architectures Giant Graft copolymers Room-temperature lithium battery Solid-state electrolytes |
| title | Efficient room-temperature solid-state lithium ion conductors enabled by mixed-graft block copolymer architectures |
| title_full | Efficient room-temperature solid-state lithium ion conductors enabled by mixed-graft block copolymer architectures |
| title_fullStr | Efficient room-temperature solid-state lithium ion conductors enabled by mixed-graft block copolymer architectures |
| title_full_unstemmed | Efficient room-temperature solid-state lithium ion conductors enabled by mixed-graft block copolymer architectures |
| title_short | Efficient room-temperature solid-state lithium ion conductors enabled by mixed-graft block copolymer architectures |
| title_sort | efficient room temperature solid state lithium ion conductors enabled by mixed graft block copolymer architectures |
| topic | Graft copolymers Room-temperature lithium battery Solid-state electrolytes |
| url | http://www.sciencedirect.com/science/article/pii/S2666542520300308 |
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