Lithium-salt monohydrate melt: A stable electrolyte for aqueous lithium-ion batteries

被引：148

作者：

Ko, Seongjae ^{[1
]}

Yamada, Yuki ^{[1
,2
]}

Miyazaki, Kasumi ^{[1
]}

Shimada, Tatau ^{[1
]}

Watanabe, Eriko ^{[1
]}

Tateyama, Yoshitaka ^{[2
,3
,4
]}

Kamiya, Takeshi ^{[5
]}

Honda, Tsunetoshi ^{[6
]}

Akikusa, Jun ^{[7
]}

Yamada, Atsuo ^{[1
,2
]}

机构：

[1] Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan

[2] Kyoto Univ, ESICB, Nishikyo Ku, 1-30 Goryo Ohara, Kyoto 6158245, Japan

[3] Natl Inst Mat Sci, Ctr Green Res Energy & Environm Mat GREEN, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

[4] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton MANA, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

[5] Mitsubishi Mat Elect Chem Co Ltd, 3-1-6 Barajima, Akita, Akita 0108585, Japan

[6] Mitsubishi Mat Corp, Adv Prod Co, Sumida Ku, 1-6-1 Yokoami, Tokyo 1300015, Japan

[7] Mitsubishi Mat Corp, Cent Res Inst, 1002-14 Mukohyama, Naka, Ibaraki 3110102, Japan

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2019年 / 104卷

关键词：

Aqueous batteries; Electrolytes; Hydrate melts; Potential window; WATER; LI; STABILITY; MECHANISM; VISCOSITY; GREEN;

D O I：

10.1016/j.elecom.2019.106488

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Concentrated aqueous electrolytes are promising for high-voltage and safe aqueous lithium-ion batteries because of their wide potential window. For Li system, a room-temperature dihydrate melt (27.8 mol kg(-1)) has been demonstrated to function as a stable aqueous electrolyte, but more concentrated electrolytes have yet to be discovered due to the limited solubility of Li salts. Here we report a room-temperature monohydrate melt of Li salts (55.5 mol kg(-1)) as an ultimate system of concentrated aqueous electrolytes. It has been discovered by adopting a Li salt with an asymmetric imide anion that shows ultra-high solubility in water. The monohydrate-melt electrolyte provides a wide potential window of similar to 5 V based on its dramatically improved passivation ability, which, for the first time, enables the Li-alloying reaction of Al in aqueous electrolytes.

引用

页数：5

共 35 条

[1] IR and Raman spectra of liquid water: Theory and interpretation [J].

Auer, B. M. ;

Skinner, J. L. .

JOURNAL OF CHEMICAL PHYSICS, 2008, 128 (22)

[2] A Critical Review of Thermal Issues in Lithium-Ion Batteries [J].

Bandhauer, Todd M. ;

Garimella, Srinivas ;

Fuller, Thomas F. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2011, 158 (03) :R1-R25

[3] THE FORMATION OF LITHIUM-ALUMINUM ALLOYS AT AN ALUMINUM ELECTRODE IN PROPYLENE CARBONATE [J].

BARANSKI, AS ;

FAWCETT, WR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1982, 129 (05) :901-907

[4] Activity of water in aqueous systems; A frequently neglected property [J].

Blandamer, MJ ;

Engberts, JBFN ;

Gleeson, PT ;

Reis, JCR .

CHEMICAL SOCIETY REVIEWS, 2005, 34 (05) :440-458

[5] Promise and reality of post-lithium-ion batteries with high energy densities [J].

Choi, Jang Wook ;

Aurbach, Doron .

NATURE REVIEWS MATERIALS, 2016, 1 (04)

[6] Aqueous Solubility of Organic Salts. Investigating Trends in a Systematic Series of 51 Crystalline Salt Forms of Methylephedrine [J].

de Moraes, Lygia S. ;

Edwards, Darren ;

Florence, Alastair J. ;

Johnston, Andrea ;

Johnston, Blair F. ;

Morrison, Catriona K. ;

Kennedy, Alan R. .

CRYSTAL GROWTH & DESIGN, 2017, 17 (06) :3277-3286

[7]

Doughty Dan, 2012, Electrochemical Society Interface, V21, P29

[8] Nanostructural Reorganization Manifests in Sui-Generis Density Trend of lmidazolium Acetate/Water Binary Mixtures [J].

Ghoshdastidar, Debostuti ;

Senapati, Sanjib .

JOURNAL OF PHYSICAL CHEMISTRY B, 2015, 119 (34) :10911-10920

[9] Fluorine-Free Water-in-Salt Electrolyte for Green and Low-Cost Aqueous Sodium-Ion Batteries [J].

Han, Jin ;

Zhang, Huang ;

Varzi, Alberto ;

Passerini, Stefano .

CHEMSUSCHEM, 2018, 11 (21) :3704-3707

[10] Aqueous Rechargeable Li and Na Ion Batteries [J].

Kim, Haegyeom ;

Hong, Jihyun ;

Park, Kyu-Young ;

Kim, Hyungsub ;

Kim, Sung-Wook ;

Kang, Kisuk .

CHEMICAL REVIEWS, 2014, 114 (23) :11788-11827

← 1 2 3 4 →