Li2O2

ceramic
· Li2O2

Lithium peroxide (Li2O2) is an inorganic ceramic compound belonging to the lithium oxide family, characterized by a peroxide ion structure that distinguishes it from simple lithium oxides. This material is primarily of research and development interest rather than established industrial production, with applications centered on advanced energy storage and oxygen generation systems where its chemical reactivity and lithium content are leveraged. Li2O2 is notable in lithium-air battery research as a discharge product that forms on cathodes, and in aerospace applications for chemical oxygen generation systems, where its decomposition under heat or catalysis releases oxygen; engineers consider it where conventional inert ceramics prove insufficient and where the material's reactivity becomes functionally beneficial rather than problematic.

lithium-air battery cathodeschemical oxygen generationaerospace life support systemsenergy storage researchadvanced ceramic electrolytesoxygen-rich propellant systems

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
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Elastic Compliance Tensor(Sij)
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Elastic Anisotropy(AU)
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Elastic Stiffness Tensor(Cij)
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Poisson's Ratio(ν)
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Shear Modulus(G)
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Verified Unverified Low confidence (<80%) Link to source
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Dielectric Constant (Relative Permittivity)(εr)2 entries
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median of 2 measurements
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Electronic Dielectric Tensor(ε∞)
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Total Dielectric Tensor(ε)
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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
Formation Energy(ΔHf)
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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.
Li2O2 — Properties & Data | MatWorld