Today’s funding announcements include innovation in car batteries, social planning and nuclear power plants:

Envia pulls in $17M for lithium-ion batteries: The Newark, Calif.-based startup has raised a third round of equity funding to develop automotive batteries for hybrid and all electric cars, according to a filing with the SEC. The company, backed by Bay Partners and Redpoint Ventures, is primarily focused on batteries for vehicles, although consumer electronics, military devices and satellites may lie in the company’s future as well.

Events planner Wortal lands $500K: The company with offices in Palo Alto and India has raised funding for its local events site Buzzintown, according to a filing with the SEC. The Intel Capital backed startup promotes events like concerts, sports and food festivals taking place in Indian, Canadian and U.S. cities.

SpotXchange grabs $12M to expand its ad network around the world: The Denver-based company has raised its first round of institutional funding from H.I.G. Growth Partners for its online video ad network that matches advertisers and publishers in an auction system. The company plans to use the funding to grow internationally.

DevonWay gets $7.1M to bring innovative tech to nuclear plant management: The San Francisco-based company has raised $7.1M of an expected $9.5M in equity funding to develop management software for the nuclear power industry, according to a filing with the SEC. The firm launched a new product focused on cyber security last week.