Abstract: A battery positive electrode material including lithium ferromanganese phosphate particles and active particles dispersed in voids between the lithium ferromanganese phosphate particles. The active particles include one or more of lithium nickel cobalt manganate particles, lithium nickel cobalt aluminate particles, lithium-rich manganese-based material particles, lithium cobaltate particles, spinel lithium manganate LiMn2O4 particles and layered lithium manganate LiMnO2 particles. The ratio of the median particle diameter of lithium ferromanganese phosphate to that of the active particles is between 3 and 8. In the battery positive electrode material, the content of percentage by weight of the lithium ferromanganese phosphate is between 70% and 90%, and the content of percentage by weight of the active particles is between 10% and 30%.

Abstract: A method includes determining where to place one or more devices at a site. Each device includes a first sensor configured to measure a concentration of a greenhouse gas (GHG). The method also includes measuring the concentration of the GHG with the first sensors. The method also includes quantifying a rate that the GHG is emitted based at least partially upon the measured concentration of the GHG. The method also includes determining a location of a GHG-emitting source at the site that is emitting the GHG that is measured by the first sensors. The location is determined based at least partially upon the measured concentration, the quantified rate, or both. The method also includes identifying the GHG-emitting source at the determined location by comparing the determined location with a list of a plurality of GHG-emitting sources at the site and locations thereof.