"Water-in-Eutectogel" Electrolytes for Quasi-Solid-State Aqueous Lithium-Ion Batteries

Hou, Xu1; Pollard, Travis P.2; He, Xin3; Du, Leilei4; Ju, Xiaokang1; Zhao, Wenguang5; Li, Meirong4; Wang, Jun6; Paillard, Elie1,7; Lin, Hai5; Sun, Jingyu8; Xu, Kang2; Borodin, Oleg2; Winter, Martin1,4; Li, Jie1,7

2022-05-01

10.1002/aenm.202200401

Advanced Energy Materials   影响因子和分区

1614-6832

1614-6840

The development of high safety lithium-ion batteries (LIBs) is greatly impeded by the flammability and leakage concerns of typical organic solvent-based electrolytes. As one of the alternative classes of electrolytes, hydrogel electrolytes exhibit high safety, high flexibility, low cost, and are benign to the environment. However, the narrow electrochemical stability window (ESW) of typical hydrogel electrolytes restricts the operating voltage of battery cells. Here, a new class of "water-in-eutectogel (WiETG)" electrolyte is reported, fabricated by combining a hydrogel with a "deep eutectic solvent" (LiTFSI in acetamide). The obtained WiETG electrolyte exhibits non-flammability, high ionic conductivity, and a wide ESW. LiMn2O4||Li4Ti5O12 cells with the WiETG electrolyte exhibit good cycling stability, high flexibility, and high safety. This newly developed WiETG electrolyte not only broadens the ESW of typical hydrogel electrolytes, but also opens a new perspective on future directions and guidance for the design of high safety electrolytes for flexible LIBs and beyond.

aqueous lithium-ion batteries quasi-solid-state electrolytes water-in-eutectogel

SCI ; EI

英语

其他

European Union[814389,829145] ; Energy of the State of North Rhine-Westphalia (MWIDE, Germany) within the project "GrEEn"[313-W044A] ; Joint Center for Energy Storage Research, an Energy Innovation Hub - US Department of Energy[W911NF-19-2-0046]

Chemistry ; Energy & Fuels ; Materials Science ; Physics

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000791450500001

WILEY-V C H VERLAG GMBH

20221912072441

Hydrogels ; Ions ; Solid electrolytes ; Solid-State Batteries

Secondary Batteries:702.1.2 ; Colloid Chemistry:801.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804

Web of Science

1.Forschungszentrum Julich, IEK 12, Helmholtz Inst Muenster HI MS, Corrensstr 46, D-48149 Munster, Germany
2.US Army, Battery Sci Branch, Sensor & Electron Devices Directorate, Res Lab, Adelphi, MD 20783 USA
3.Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China
4.Univ Munster, Inst Phys Chem, MEET Battery Res Ctr, Corrensstr 46, D-48149 Munster, Germany
5.Peking Univ, Sch Adv Mat, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China
6.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
7.Politecn Milan, Dept Energy, Via Lambruschini 4, I-20156 Milan, MI, Italy
8.Soochow Univ, Jiangsu Prov Key Lab Adv Carbon Mat & Wearable En, Soochow Inst Energy & Mat Innovat SIEMIS, Coll Energy, Suzhou 215006, Peoples R China

Hou, Xu,Pollard, Travis P.,He, Xin,et al. "Water-in-Eutectogel" Electrolytes for Quasi-Solid-State Aqueous Lithium-Ion Batteries[J]. Advanced Energy Materials,2022,12.

Hou, Xu.,Pollard, Travis P..,He, Xin.,Du, Leilei.,Ju, Xiaokang.,...&Li, Jie.(2022)."Water-in-Eutectogel" Electrolytes for Quasi-Solid-State Aqueous Lithium-Ion Batteries.Advanced Energy Materials,12.

Hou, Xu,et al.""Water-in-Eutectogel" Electrolytes for Quasi-Solid-State Aqueous Lithium-Ion Batteries".Advanced Energy Materials 12(2022).