Cubic garnet solid polymer electrolyte for room temperature operable all-solid-state-battery
Solid polymer electrolytes are promising candidates for implementation in next-generation all-solid-state batteries (ASSBs) which could replace conventional batteries used today. However, the materialization of ASSBs on a mass scale is restricted by the low ionic conductivity and high interfacial re...
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2021
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oai:doaj.org-article:9dc71287ba22405da241a6f3304fc5ac2021-11-26T04:31:10ZCubic garnet solid polymer electrolyte for room temperature operable all-solid-state-battery2238-785410.1016/j.jmrt.2021.11.055https://doaj.org/article/9dc71287ba22405da241a6f3304fc5ac2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421013351https://doaj.org/toc/2238-7854Solid polymer electrolytes are promising candidates for implementation in next-generation all-solid-state batteries (ASSBs) which could replace conventional batteries used today. However, the materialization of ASSBs on a mass scale is restricted by the low ionic conductivity and high interfacial resistance of solid electrolytes. In this work, succinonitrile (SN) with lithium (trifluoromethylsulphonyl)imide (LiTFSI) and Al-doped Li7La3Zr2O12 (Al-LLZO) nanoparticles were used to improve the ionic conductivity of a polyethylene oxide-based composite electrolyte. The Al-LLZO nanoparticles were synthesized by a facile synthesis process at low temperatures, which contributed to an enhancement in the ionic conductivity. A solid polymer electrolyte with 7.5 wt% of Al-LLZO and 15 wt% of SN achieved a high ionic conductivity of 4.17 × 10−4 Scm−1 at room temperature and a large value of 0.451 for the lithium-ion transport number at 60 °C. By adding 10 wt% SN and 10 wt% of Al-LLZO in the LiFePO4 cathode, the cell could operate at 25 °C with a specific capacity of 130 mAh g−1 and 89% capacity retention after 200 cycles at current density of 20 mA g−1. This study therefore proposes a solution to improve the ionic conductivity of solid polymer electrolytes in all-solid-state batteries.Van Tung LuuQuoc Hung NguyenMoon Gyu ParkHoang Long NguyenMin-Ho SeoSoon-Ki JeongNamchul ChoYoung-Woo LeeYounghyun ChoSung Nam LimYun-Seok JunWook AhnElsevierarticleAll-solid-stateSolid polymer electrolytesCubic garnet llzoLithium-ion batterySuccinonitrileMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 5849-5863 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
All-solid-state Solid polymer electrolytes Cubic garnet llzo Lithium-ion battery Succinonitrile Mining engineering. Metallurgy TN1-997 |
| spellingShingle |
All-solid-state Solid polymer electrolytes Cubic garnet llzo Lithium-ion battery Succinonitrile Mining engineering. Metallurgy TN1-997 Van Tung Luu Quoc Hung Nguyen Moon Gyu Park Hoang Long Nguyen Min-Ho Seo Soon-Ki Jeong Namchul Cho Young-Woo Lee Younghyun Cho Sung Nam Lim Yun-Seok Jun Wook Ahn Cubic garnet solid polymer electrolyte for room temperature operable all-solid-state-battery |
| description |
Solid polymer electrolytes are promising candidates for implementation in next-generation all-solid-state batteries (ASSBs) which could replace conventional batteries used today. However, the materialization of ASSBs on a mass scale is restricted by the low ionic conductivity and high interfacial resistance of solid electrolytes. In this work, succinonitrile (SN) with lithium (trifluoromethylsulphonyl)imide (LiTFSI) and Al-doped Li7La3Zr2O12 (Al-LLZO) nanoparticles were used to improve the ionic conductivity of a polyethylene oxide-based composite electrolyte. The Al-LLZO nanoparticles were synthesized by a facile synthesis process at low temperatures, which contributed to an enhancement in the ionic conductivity. A solid polymer electrolyte with 7.5 wt% of Al-LLZO and 15 wt% of SN achieved a high ionic conductivity of 4.17 × 10−4 Scm−1 at room temperature and a large value of 0.451 for the lithium-ion transport number at 60 °C. By adding 10 wt% SN and 10 wt% of Al-LLZO in the LiFePO4 cathode, the cell could operate at 25 °C with a specific capacity of 130 mAh g−1 and 89% capacity retention after 200 cycles at current density of 20 mA g−1. This study therefore proposes a solution to improve the ionic conductivity of solid polymer electrolytes in all-solid-state batteries. |
| format |
article |
| author |
Van Tung Luu Quoc Hung Nguyen Moon Gyu Park Hoang Long Nguyen Min-Ho Seo Soon-Ki Jeong Namchul Cho Young-Woo Lee Younghyun Cho Sung Nam Lim Yun-Seok Jun Wook Ahn |
| author_facet |
Van Tung Luu Quoc Hung Nguyen Moon Gyu Park Hoang Long Nguyen Min-Ho Seo Soon-Ki Jeong Namchul Cho Young-Woo Lee Younghyun Cho Sung Nam Lim Yun-Seok Jun Wook Ahn |
| author_sort |
Van Tung Luu |
| title |
Cubic garnet solid polymer electrolyte for room temperature operable all-solid-state-battery |
| title_short |
Cubic garnet solid polymer electrolyte for room temperature operable all-solid-state-battery |
| title_full |
Cubic garnet solid polymer electrolyte for room temperature operable all-solid-state-battery |
| title_fullStr |
Cubic garnet solid polymer electrolyte for room temperature operable all-solid-state-battery |
| title_full_unstemmed |
Cubic garnet solid polymer electrolyte for room temperature operable all-solid-state-battery |
| title_sort |
cubic garnet solid polymer electrolyte for room temperature operable all-solid-state-battery |
| publisher |
Elsevier |
| publishDate |
2021 |
| url |
https://doaj.org/article/9dc71287ba22405da241a6f3304fc5ac |
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