A free-sealed high-voltage aqueous polymeric sodium battery enabling operation at −25°C
An increasing demand for electric vehicles and flexible electronics focuses attention on developing a safe, high-energy, and sustainable battery that can work under severe conditions. Emerging high-voltage aqueous batteries based on highly concentrated salts and molecular crowding electrolytes are l...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Cell Press
2022
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| Subjects: | |
| Online Access: | View Fulltext in Publisher |
| LEADER | 02326nam a2200373Ia 4500 | ||
|---|---|---|---|
| 001 | 0.1016-j.xcrp.2022.100805 | ||
| 008 | 220421s2022 CNT 000 0 und d | ||
| 020 | |a 26663864 (ISSN) | ||
| 245 | 1 | 0 | |a A free-sealed high-voltage aqueous polymeric sodium battery enabling operation at −25°C |
| 260 | 0 | |b Cell Press |c 2022 | |
| 856 | |z View Fulltext in Publisher |u https://doi.org/10.1016/j.xcrp.2022.100805 | ||
| 520 | 3 | |a An increasing demand for electric vehicles and flexible electronics focuses attention on developing a safe, high-energy, and sustainable battery that can work under severe conditions. Emerging high-voltage aqueous batteries based on highly concentrated salts and molecular crowding electrolytes are likely to be hampered by their poor low-temperature performance because of a high freezing point and salting out at low temperature. Inspired by the antifreezing ionogel electrolyte for transport measurements at subzero temperatures, we design a water-in-ionogel electrolyte with a low salt-concentration (2m NaTFSI) and high operational voltage (3.0 V) by changing the hydrogen bonding and introducing fluoride additives for low-temperature operation. A full cell with a P2-type Na2/3Mn2/3Co1/3O1.98F0.02 cathode and hard-carbon anode could deliver high energy densities of 109 and 23.4 Wh kg−1 at room temperature and −25°C. This eco-friendly aqueous polymeric battery could be free sealed and perform in water. This work opens an avenue for designing high-energy, free-sealed aqueous batteries for low-cost, sustainable energy storage, enabling subzero temperature operation. © 2022 | |
| 650 | 0 | 4 | |a aqueous polymeric sodium batteries |
| 650 | 0 | 4 | |a fluorine doping |
| 650 | 0 | 4 | |a free seal |
| 650 | 0 | 4 | |a high rate |
| 650 | 0 | 4 | |a high voltage |
| 650 | 0 | 4 | |a hydrogen bonding |
| 650 | 0 | 4 | |a low temperature |
| 650 | 0 | 4 | |a P2-type cathode |
| 650 | 0 | 4 | |a ultrathin |
| 650 | 0 | 4 | |a water in ionogel |
| 700 | 1 | 0 | |a Bai, Y.-Z. |e author |
| 700 | 1 | 0 | |a Cai, T.-X. |e author |
| 700 | 1 | 0 | |a Chen, J. |e author |
| 700 | 1 | 0 | |a Dong, W.-J. |e author |
| 700 | 1 | 0 | |a Huang, F.-Q. |e author |
| 700 | 1 | 0 | |a Rong, J.-Z. |e author |
| 700 | 1 | 0 | |a Wu, T. |e author |
| 700 | 1 | 0 | |a Wu, Y.-K. |e author |
| 700 | 1 | 0 | |a Xu, S.-M. |e author |
| 700 | 1 | 0 | |a Zhao, W. |e author |
| 700 | 1 | 0 | |a Zhao, X. |e author |
| 773 | |t Cell Reports Physical Science | ||