Li14Co2S9 — Properties & Data | MatWorld

Li14Co2S9

metal

· JVASP-46000· Li14Co2S9

Li14Co2S9 is an experimental lithium-cobalt sulfide compound being investigated primarily as a potential cathode or solid electrolyte material for advanced lithium-ion and solid-state battery systems. This material belongs to the family of lithium metal chalcogenides, which are of significant research interest for next-generation energy storage due to their mixed ionic-electronic conductivity and potential for higher energy density. Engineers would consider this compound in early-stage battery development programs seeking alternatives to conventional oxide cathodes, particularly for applications demanding improved thermal stability, cycle life, or energy density; however, this remains a research-phase material without established commercial production or widespread industrial deployment.

solid-state battery developmentlithium-ion cathode materialssolid electrolyte researchenergy storage systemshigh-energy-density batteries

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.061	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.6040	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	37.68	-	DFT · OptB88vdW
Magnetic Moment(μB)	6.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000192	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000138	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-345.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	330.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°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, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1263	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.238	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

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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.

Li14Co2S9

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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