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Title: Redox cycles with doped calcium manganites for thermochemical energy storage to 1000 °C

Journal Article · · Applied Energy
 [1];  [2];  [3];  [1];  [1]
  1. Colorado School of Mines, Golden, CO (United States)
  2. Colorado School of Mines, Golden, CO (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. Colorado School of Mines, Golden, CO (United States); WindLogics, Inc., Juno Beach, FL (United States)
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Redox cycles of doped calcium manganite perovskites (CaMnO3–δ) are studied for cost-effective thermochemical energy storage at temperatures up to 1000 °C for concentrating solar power and other applications. Furthermore, if the thermodynamics and kinetics for heat-driven reduction can be tailored for high temperatures and industrially accessible low O2 partial pressures (PO2 ≥ 10–4 bar), perovskite redox cycles can offer high specific energy storage at temperatures much higher than state-of-the-art molten-salt subsystems.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
Grant/Contract Number:
AC04-94AL85000; EE0006537
OSTI ID:
1524211
Alternate ID(s):
OSTI ID: 1731013
Report Number(s):
SAND-2019-5782J; 675760
Journal Information:
Applied Energy, Vol. 230, Issue C; ISSN 0306-2619
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 34 works
Citation information provided by
Web of Science

Figures / Tables (15)

Figure 1(p. 6)figure Figure 1
Figure 2(p. 7)figure Figure 2
Figure 3(p. 12)figure Figure 3
Figure 4(p. 14)figure Figure 4
Table 1(p. 15)table Table 1
Figure 5(p. 16)figure Figure 5
Figure 6(p. 17)figure Figure 6
Figure 7(p. 18)figure Figure 7
Figure 8(p. 20)figure Figure 8
Figure 9(p. 20)figure Figure 9
Figure 10(p. 22)figure Figure 10
Table 2(p. 23)table Table 2
Figure 11(p. 25)figure Figure 11
Figure 12(p. 26)figure Figure 12
Figure 13(p. 27)figure Figure 13

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Related Subjects

25 ENERGY STORAGE
Thermochemical energy storage
Perovskites
Calcium manganite
Redox cycles
Concentrating solar power