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High-Energy-Density Rechargeable Lithium-Nickel Chloride Aqueous Solution Batteries.

ABSTRACT: High-energy-density rechargeable batteries with performance beyond that of lithium-ion batteries are required for next-generation electric vehicles. We propose a novel rechargeable battery with a lithium anode and a NiCl2 aqueous cathode that is separated Li1.4Al0.4Ge0.2Ti1.4(PO4)3 as a water-stable lithium-ion-conducting solid electrolyte. The cell was discharged up to 93% of the theoretical cathode capacity at 0.5 mA cm-2 and 25 °C. The calculated energy density, based on the weights of NiCl2 and Li, and the average discharge voltage of 2.4 V at 0.5 mA cm-2, was 852 Wh kg-1, which is more than twice as high as that of conventional lithium-ion batteries. The cell was successfully cycled for 50 cycles without any degradation of the charge and discharge voltages at 0.5 mA cm-2 and 25 °C for 5 h charge and 5 h discharge, where the utilization of NiCl2 was 80%.

SUBMITTER: Morita Y

PROVIDER: S-EPMC6641902 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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High-Energy-Density Rechargeable Lithium-Nickel Chloride Aqueous Solution Batteries.

Morita Yoshinori Y Watanabe Shinya S Mori Daisuke D Takeda Yasuo Y Yamamoto Osamu O Imanishi Nobuyuki N

ACS omega 20180524 5

High-energy-density rechargeable batteries with performance beyond that of lithium-ion batteries are required for next-generation electric vehicles. We propose a novel rechargeable battery with a lithium anode and a NiCl2 aqueous cathode that is separated Li1.4Al0.4Ge0.2Ti1.4(PO4)3 as a water-stable lithium-ion-conducting solid electrolyte. The cell was discharged up to 93% of the theoretical cathode capacity at 0.5 mA ...[more]

PMID: 31458759

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