LMO

LMO is an acronym with multiple meanings across different fields. The most widely recognized scientific use refers to lithium manganese oxide, LiMn2O4, a spinel-structured material used as a cathode in lithium-ion batteries. LiMn2O4 cathodes offer low cost and good rate capability, along with improved thermal stability compared with some cobalt-containing cathodes. However, they typically exhibit lower energy density and can suffer from manganese dissolution at higher voltages, which can affect cycle life. In practice, LiMn2O4 is used in the form of doped variants or composite materials to enhance capacity and stability, and its operating voltage is typically around 4.0 volts versus lithium. The theoretical capacity of LiMn2O4 is about 148 mAh per gram, with real-world values often in the 100–120 mAh/g range depending on formulation and usage. LiMn2O4 cathodes have seen use in power tools, electric bikes, and certain consumer electronics, especially in applications prioritizing safety and cost.

Beyond lithium manganate, LMO serves as an acronym in other domains, and its meaning varies with context. Because there is no single universally accepted definition, identifying the field and source is important to interpret LMO correctly. When encountering the term, readers should consider the surrounding subject matter to determine which meaning is intended.