K2 Li2 S2

semiconductor

· K2 Li2 S2

K2Li2S2 is an experimental lithium-potassium sulfide compound classified as a semiconductor, belonging to the family of mixed-metal sulfides under investigation for solid-state energy storage applications. This material is primarily of research interest rather than established industrial production, with potential applications in next-generation battery systems where its ionic conductivity and structural properties could enable safer, higher-energy-density alternatives to conventional liquid electrolytes. Engineers evaluating this compound should recognize it as a materials science research candidate rather than a proven commercial product, suitable for exploratory development in energy storage where the combination of lithium and potassium cations offers tunable electrochemical behavior.

solid-state battery electrolytesenergy storage researchionic conductorsnext-generation batteriesexperimental semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	4,602.5	ksi	—
Shear Modulus(G)	2,889.2	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	3.347	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.402	eV/atom	—

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

Regulatory Screening

Environmental

Export Control

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.

K2 Li2 S2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control