BetaNews is reporting that 3M is suing some big names in laptops over battery technology. 3M is claiming that several manufacturers including Sony and Lenovo are using formats that they created in their mobile solutions.
At issue is the cathode materials used inside the batteries, which 3M claims makes them last longer and give off less heat. The company says it spent 10 years developing the technology, and says it is a $700 million business.