Thermodynamics aging method

Hirschmann M. (1991). Thermodynamics of multicomponent olivines and the solution properties of (Ni,Mg,Ee)2Si04 and (Ca,Mg,Fe)2Si04 olivines. Amer. Mineral, 76 1232-1248 Hirt B., Herr W, and Hoffmeister W. (1963). Age determinations by the rhenium-osmium method. In Radioactive Dating, International Atomic Energy Agency, Vienna. 

The study of blends by physical aging is stiU largely unexplored and requires close attention both from the experimental and theoretical standpoint. One major advance would be the ability to crosscorrelate mechanical and thermodynamic physical aging data, but while there is a theory that links the two this is imperfect and requires refinement. One problem is that the aging processes, when followed by these different methods, proceed at different rates. If conditions could be established that led to these proceeding at equal rates then this cross-correlation would be possible. 

This chapter is devoted to thermodynamic characterization of lithium-ion cells in the process of aging. Three methods were applied to accelerate cells aging ... 

Accordingly, our new thermodynamic methods do allow for a clear recognition of the nature of the aging mode together with the aging conditions an LIB cell has experienced. To the authors knowledge, this is the first time such a battery history or aging memory has been imveiled [20]. 

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