Journal Article10.1002/ANIE.201602397
Advanced High-Voltage Aqueous Lithium-Ion Battery Enabled by "Water-in-Bisalt" Electrolyte.
Liumin Suo,Oleg Borodin,Wei Sun,Xiulin Fan,Chongyin Yang,Fei Wang,Tao Gao,Zhaohui Ma,Marshall A. Schroeder,Arthur v. Cresce,Selena M. Russell,Michel Armand,Austen Angell,Kang Xu,Chunsheng Wang +14 more
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TL;DR: It has been demonstrated that the introduction of a second salts into the "water-in-salt" electrolyte further pushed the energy densities of aqueousLi-ion cells closer to those of the state-of-the-art Li-ion batteries.
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Abstract: A new super-concentrated aqueous electrolyte is proposed by introducing a second lithium salt. The resultant ultra-high concentration of 28 m led to more effective formation of a protective interphase on the anode along with further suppression of water activities at both anode and cathode surfaces. The improved electrochemical stability allows the use of TiO2 as the anode material, and a 2.5 V aqueous Li-ion cell based on LiMn2O4 and carbon-coated TiO2 delivered the unprecedented energy density of 100 Wh kg−1 for rechargeable aqueous Li-ion cells, along with excellent cycling stability and high coulombic efficiency. It has been demonstrated that the introduction of a second salts into the “water-in-salt” electrolyte further pushed the energy densities of aqueous Li-ion cells closer to those of the state-of-the-art Li-ion batteries.
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Citations
Hybrid Aqueous/Nonaqueous Water-in-Bisalt Electrolyte Enables Safe Dual Ion Batteries.
Jiaojiao Zhu,Jiaojiao Zhu,Yongtai Xu,Yujun Fu,Dewei Xiao,Yali Li,Lingyang Liu,Yue Wang,Qingnuan Zhang,Junshuai Li,Xingbin Yan +10 more
TL;DR: A hybrid aqueous/nonaqueous water-in-bisalt electrolyte with both broad electrochemical stability window and excellent safety performance is developed, which exhibits good comprehensive performance including capacity, cycling stability, rate performance, and medium discharge voltage.
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A Comparative Review of Electrolytes for Organic-Material-Based Energy-Storage Devices Employing Solid Electrodes and Redox Fluids
Ruiyong Chen,Dominic Bresser,Mohit Saraf,Patrick Gerlach,Andrea Balducci,Simon Kunz,Daniel Schröder,Stefano Passerini,Jun Chen +8 more
TL;DR: Due to different configurations and requirements between LIBs and RFBs, the similarities and differences for choosing suitable electrolytes are discussed.
Nanoflakes of Ni-Co LDH and Bi2O3 Assembled in 3D Carbon Fiber Network for High-Performance Aqueous Rechargeable Ni/Bi Battery.
TL;DR: The combination of the porous Ni-Co hydroxides/Bi2O3 nanoflakes with carbon substrate of 3D network is able to provide a large surface area, excellent conductivity, and promote synergistic effects, as a result of the interaction between the active materials and the carbon matrix.
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Molecular crowding agents engineered to make bioinspired electrolytes for high-voltage aqueous supercapacitors
Mengke Peng,Li Wang,Longbin Li,Zhongyou Peng,Xiannong Tang,Ting Hu,Kai Yuan,Yiwang Chen,Yiwang Chen +8 more
- 17 Oct 2021
TL;DR: In this article, a molecular crowding electrolyte is prepared by simulating the crowded environment in living cells, which can significantly improve ionic conductivity while maintaining a wide voltage window, enabling commercial activated carbon-based supercapacitors to work at 2.5 V with high energy density, outstanding rate performance and good stability for more than 10, 000 cycles.
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