Zhong Lin Wang, Georgia Tech (1 of 2) (image) Georgia Institute of Technology Caption Georgia Tech researcher Zhong Lin Wang holds the components of a new self-charging power cell that uses piezoelectric materials to directly convert mechanical energy to chemical energy. The chemical energy can be released as electricity. Credit Georgia Tech Photo: Gary Meek Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.