On April 30, the Environmental Protection Agency (EPA) released its report Application of Life-Cycle Assessment to Nanoscale Technology: Lithium-ion Batteries for Electric Vehicles. The report found that there is increased demand for lithium-ion batteries. It recommended new research on these batteries to further examine their impact on the environment and on public health. Environmental concerns raised by the report included inefficient use of the grid to charge batteries as well as the use of nickel, cobalt, and other dangerous materials in manufacturing. The report recommended the use of nanotechnology to improve battery efficiency, thus decreasing the need to create more batteries.