NaCo2O4

ceramic
· NaCo2O4

NaCo2O4 is a layered oxide ceramic compound combining sodium and cobalt in a mixed-valence structure, belonging to the family of transition metal oxides studied for electrochemical and thermal applications. This material is primarily investigated in research contexts for thermoelectric energy conversion and electrochemical energy storage, where its layered crystal structure and mixed-valence cobalt sites enable ion transport and charge carrier mobility. Its potential advantages in thermoelectric applications—where thermal and electrical properties are simultaneously important—and in cathode materials for sodium-ion batteries make it a candidate for next-generation energy devices, though it remains largely in the development phase rather than widespread industrial production.

thermoelectric generatorssodium-ion battery cathodessolid-state electrolyte researchhigh-temperature thermal managementelectrochemical energy storagemixed-valence ceramic systems

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Thermal Conductivity(k)2 entries
2.753
BTU/(hr·ft·°F)—
↳
2.753
BTU/(hr·ft·°F)727°C
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.1610
lb/in³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV—
Electrical Conductivity(σ)
1,666.7
S/cm727°C
Electrical Resistivity(ρe)
0.00000600
Ω·m727°C
Magnetic Moment(μB)
3.836
µB—
Thermoelectric Power Factor(PF)
0.00667
W/(m·K²)727°C
Seebeck Coefficient(S)
200
μV/K727°C
Thermoelectric Figure of Merit(zT)
1.399
-727°C
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.01270
eV/atom—
Formation Energy(ΔHf)
-1.403
eV/atom—
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.