Li2OMnO2

Lithium manganese dioxide, with the chemical formula LiMnO2, is a solid-state inorganic compound. It is a member of the lithium-ion battery cathode materials family, known for its role in primary (non-rechargeable) lithium batteries. These batteries are often referred to as lithium metal batteries, where LiMnO2 serves as the cathode. The electrochemical reaction involves the intercalation and deintercalation of lithium ions. LiMnO2 is typically synthesized through various solid-state reactions at elevated temperatures, often starting from precursors like lithium carbonate and manganese dioxide. It possesses a layered crystal structure, which facilitates the movement of lithium ions during discharge and charge cycles, although its primary use is in non-rechargeable applications. The energy density and stability of LiMnO2 make it suitable for devices requiring long shelf life and reliable power sources, such as watches, calculators, and medical devices. While other lithium-ion cathode materials like lithium cobalt oxide and lithium iron phosphate are prevalent in rechargeable batteries, LiMnO2 remains a key component in the primary battery market.