Waltham-based A123 Systems, the battery and energy-storage systems maker with operations in Westborough and Hopkinton, has filed for federal bankruptcy protection for its U.S. operations and announced ...

After a long and bumpy road, battery-producer A123 Systems has officially filed for bankruptcy. This news comes immediately after word that the Waltham, Massachusetts-based company may not have enough ...

Editor's Note: This article is part of our ongoing coverage commemorating 25 years of the PACE Awards for supplier innovation. For more about the program, visit the PACE Awards site. Fluctuations in ...

A123 Systems, a Waltham-based developer of lithium ion batteries, will supply battery packs to city busses under a new agreement with BAE Systems, a global provider of hybrid electronic technologies.

Start-up 24M Technologies receives $10 million in venture funding to pursue high energy density storage for vehicles and grid storage that combines lithium ion and flow battery concepts. Martin ...