Development of Stress-Strain Models for Energy-Storing Systems,
BATTELLE COLUMBUS LABS OHIO
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The report is an attempt to arrive at a useful stress-strain model for batteries. The first objective is to formulate and justify the meaning of stress and strain and similar concepts related to the performance and aging of batteries. A second objective is to formulate mathematical relationships for various combinations of springs, dashpots, and their analogs. A third objective is to associate specific processes and components in a battery with one or more models growing out of results from Objectives 1 and 2. In attempting to reach the first objective it seemed necessary to consider the general meaning of stress, strain, force, displacement, strain-rate, and acceleration, for individual forms of energy. The report expands on the generalized meaning of stress and strain for six forms of energy 1 mechanical energy, 2 surface energy, 3 volume expansion energy, 4 electrical energy, 5 thermal energy, and 6 chemical energy.
- Non-electrical Energy Conversion
- Electrochemical Energy Storage