HOLLAND — Reports this month that LG Chem plans to build a second U.S. lithium-ion battery plant underscore how much the automotive industry has evolved in the six years since the company started making advanced batteries in West Michigan.

LANSING — A Mid Michigan nanotechnology company seeks to raise $24 million through an initial public offering to fund operations as it continues to commercialize composite materials for rechargeable lithium-ion batteries and other uses.