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Title: Self-Heating Conductive Ceramic Composites for High Temperature Thermal Energy Storage

Journal Article · · ACS Energy Letters
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3];  [4];  [3]; ORCiD logo [5];  [4]; ORCiD logo [6];  [7]; ORCiD logo [8]; ORCiD logo [9]; ORCiD logo [8]; ORCiD logo [4]; ORCiD logo [3]; ORCiD logo [6]; ORCiD logo [10]
  1. Peking University, Beijing (China); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  2. Chinese Academy of Sciences (CAS), Beijing (China); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  3. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  4. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Molecular Foundry
  5. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Georgia Institute of Technology, Atlanta, GA (United States)
  6. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  7. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States); Hong Kong University of Science and Technology (HKUST) (Hong Kong)
  8. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Molecular Foundry
  9. Peking University, Beijing (China)
  10. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Boston Univ., MA (United States)

The absence of affordable and deployable large-scale energy storage poses a major barrier to providing zero-emission energy on demand for societal decarbonization. High temperature thermal energy storage is one promising option with low cost and high scalability, but it is hindered by the inherent complexity of simultaneously satisfying all of the material requirements. Here we design a class of ceramic–carbon composites based on co-optimizing mechanical, electrical, and thermal properties. Further, these composites demonstrate stability in soak-and-hold tests and direct self-heating up to 1,936 °C and 750 thermal cycles from 500 to 1,630 °C without degradation. This thermal performance derives from their composition and microstructural design as verified by in situ high-temperature transmission electron microscopy and X-ray diffraction. They offer both higher energy density and lower cost than conventional storage technologies with a projected system Levelized Cost of Storage below the U.S. Department of Energy’s 2030 target 5 ¢/kWh (electric).

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Fundamental Understanding of Transport Under Reactor Extremes (FUTURE); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Molecular Foundry
Sponsoring Organization:
National Science Foundation (NSF); USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2529433
Journal Information:
ACS Energy Letters, Journal Name: ACS Energy Letters Journal Issue: 2 Vol. 10; ISSN 2380-8195
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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