2020
DOI: 10.1021/acs.nanolett.0c00044
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A High-Rate Lithium Manganese Oxide-Hydrogen Battery

Abstract: Rechargeable hydrogen gas batteries show promises for the integration of renewable yet intermittent solar and wind electricity into the grid energy storage. Here, we describe a rechargeable, high-rate, and long-life hydrogen gas battery that exploits a nanostructured lithium manganese oxide cathode and a hydrogen gas anode in an aqueous electrolyte. The proposed lithium manganese oxide-hydrogen battery shows a discharge potential of ∼1.3 V, a remarkable rate of 50 C with Coulombic efficiency of ∼99.8%, and a r… Show more

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Cited by 41 publications
(29 citation statements)
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References 34 publications
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“…We assembled the H 2 /H + battery in Swagelok cells in sealed hydrogen gas surroundings according to our previous reports. In the measurements for full cells, the capacities and current rates are calculated based on the active mass of the CuHCF cathode material. Since the battery performance is largely dependent on the type and concentration of the electrolyte, we first explored the influence of sulfuric acid as the aqueous proton electrolyte.…”
Section: Results and Discussionsupporting
confidence: 91%
See 1 more Smart Citation
“…We assembled the H 2 /H + battery in Swagelok cells in sealed hydrogen gas surroundings according to our previous reports. In the measurements for full cells, the capacities and current rates are calculated based on the active mass of the CuHCF cathode material. Since the battery performance is largely dependent on the type and concentration of the electrolyte, we first explored the influence of sulfuric acid as the aqueous proton electrolyte.…”
Section: Results and Discussionsupporting
confidence: 91%
“…Hydrogen gas as an emerging anode delivers very low overpotentials, fast kinetics, and long-term stability in terms of reversible hydrogen evolution and oxidation reactions (HER/HOR) . In recent years, we proposed and demonstrated a class of rechargeable hydrogen gas batteries, which are empowered by the hydrogen gas anode that reacts by the proton charge carrier in aqueous solution, delivering a high rate and exceptional cycling performance. For example, we recently presented a static iodine–hydrogen gas battery, which not only delivered a prominent performance with a high rate of 100 C and long cycle life of 60 000 cycles but also operated well in an acidic electrolyte . In addition, a novel manganese–hydrogen gas battery has attracted much attention in exploring acidic battery systems with fast reaction kinetics up to 100 C and long cycling stability over 10 000 cycles .…”
Section: Introductionmentioning
confidence: 99%
“…The cathode Mn 2+ /MnO 2 deposition/stripping reactions were initially demonstrated in the MnO 2 ‐H 2 battery by coupling it with a catalytic hydrogen gas anode as reported by Cui and coworkers. [ 76,142,143 ] The cathode reactions were conducted between soluble Mn 2+ and solid MnO 2 by reversible deposition/stripping, which is fundamentally different from the traditional solid‐state cathode reactions in the first generation Mn‐based batteries. The electrochemical reactions of the MnO 2 ‐H 2 battery can be described in the following: leftCathode: Mn2++2normalH2OMnO2+4normalH++2normale E0=1.228 V vs SHE Anode: 2normalH++2normalenormalH2 E0=0 V vs SHE Overall: Mn2++2normalH2OMnO2+2normalH++normalH2 E=1.228 V …”
Section: Aqueous Mn‐based Batteries With Mn2+/mno2 Chemistrymentioning
confidence: 99%
“…Consistent with our previous work [2][3][4][5][6][7] , the NCP-H2 battery was operated in a sealed condition as a pressurized cell. Before electrochemical tests, the assembled battery was purged with high-purity hydrogen (99.99%) to remove the air trapped in the battery.…”
Section: Fabrication Of the Swagelok Cellmentioning
confidence: 78%