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Title: Nickel-hydrogen batteries for large-scale energy storage

Abstract

Large-scale energy storage is of significance to the integration of renewable energy into electric grid. Despite the dominance of pumped hydroelectricity in the market of grid energy storage, it is limited by the suitable site selection and footprint impact. Rechargeable batteries show increasing interests in the large-scale energy storage; however, the challenging requirement of low-cost materials with long cycle and calendar life restricts most battery chemistries for use in the grid storage. Recently we introduced a concept of manganese-hydrogen battery with Mn 2+/MnO 2 redox cathode paired with H +/H 2 gas anode, which has a long life of 10,000 cycles and with potential for grid energy storage. Here we expand this concept by replacing Mn 2+/MnO 2 redox with a nickel-based cathode, which enables ~10× higher areal capacity loading, reaching ~35 mAh cm –2. We also replace high-cost Pt catalyst on the anode with a low-cost, bifunctional nickel-molybdenum-cobalt alloy, which could effectively catalyze hydrogen evolution and oxidation reactions in alkaline electrolyte. Such a nickel-hydrogen battery exhibits an energy density of ~140 Wh kg –1 (based on active materials) in aqueous electrolyte and excellent rechargeability with negligible capacity decay over 1,500 cycles. Furthermore, the estimated cost of the nickel-hydrogen batterymore » based on active materials reaches as low as ~$83 per kilowatt-hour, demonstrating attractive characteristics for large-scale energy storage.« less

Authors:
 [1];  [1];  [1]; ORCiD logo [2];  [3]
  1. Stanford Univ., Stanford, CA (United States)
  2. Stanford Univ., Stanford, CA (United States); Georgia Inst. of Technology, Atlanta, GA (United States)
  3. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1490635
Alternate Identifier(s):
OSTI ID: 1479618
Grant/Contract Number:  
AC02-76-SFO0515
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Volume: 115; Journal Issue: 46; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; battery; large-scale energy storage; hydrogen catalysts; nickel-hydrogen; nickel-molybdenum-cobalt

Citation Formats

Chen, Wei, Jin, Yang, Zhao, Jie, Liu, Nian, and Cui, Yi. Nickel-hydrogen batteries for large-scale energy storage. United States: N. p., 2018. Web. doi:10.1073/pnas.1809344115.
Chen, Wei, Jin, Yang, Zhao, Jie, Liu, Nian, & Cui, Yi. Nickel-hydrogen batteries for large-scale energy storage. United States. doi:10.1073/pnas.1809344115.
Chen, Wei, Jin, Yang, Zhao, Jie, Liu, Nian, and Cui, Yi. Mon . "Nickel-hydrogen batteries for large-scale energy storage". United States. doi:10.1073/pnas.1809344115.
@article{osti_1490635,
title = {Nickel-hydrogen batteries for large-scale energy storage},
author = {Chen, Wei and Jin, Yang and Zhao, Jie and Liu, Nian and Cui, Yi},
abstractNote = {Large-scale energy storage is of significance to the integration of renewable energy into electric grid. Despite the dominance of pumped hydroelectricity in the market of grid energy storage, it is limited by the suitable site selection and footprint impact. Rechargeable batteries show increasing interests in the large-scale energy storage; however, the challenging requirement of low-cost materials with long cycle and calendar life restricts most battery chemistries for use in the grid storage. Recently we introduced a concept of manganese-hydrogen battery with Mn2+/MnO2 redox cathode paired with H+/H2 gas anode, which has a long life of 10,000 cycles and with potential for grid energy storage. Here we expand this concept by replacing Mn2+/MnO2 redox with a nickel-based cathode, which enables ~10× higher areal capacity loading, reaching ~35 mAh cm–2. We also replace high-cost Pt catalyst on the anode with a low-cost, bifunctional nickel-molybdenum-cobalt alloy, which could effectively catalyze hydrogen evolution and oxidation reactions in alkaline electrolyte. Such a nickel-hydrogen battery exhibits an energy density of ~140 Wh kg–1 (based on active materials) in aqueous electrolyte and excellent rechargeability with negligible capacity decay over 1,500 cycles. Furthermore, the estimated cost of the nickel-hydrogen battery based on active materials reaches as low as ~$83 per kilowatt-hour, demonstrating attractive characteristics for large-scale energy storage.},
doi = {10.1073/pnas.1809344115},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 46,
volume = 115,
place = {United States},
year = {Mon Oct 29 00:00:00 EDT 2018},
month = {Mon Oct 29 00:00:00 EDT 2018}
}

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