... Sources, Vol.68, No.2, pp. 73 5 -73 8, ISSN: 0 378 -77 53 4. Bio-inspired materials for other energy conversion devices Energy Storage in the Emerging Era of Smart Grids 240 Here Poly[methanetetryl-tetra(thiomethylene)] ... constants of a = 4.399 Å and c = 2. 874 Å, which match very well with the standard XRD pattern (Figure 7a, bottom). However, in Figure 7b, for the XRD Energy Storage in the Emerging Era of Smart Grids ... shown in Fig. 5. Energy Storage in the Emerging Era of Smart Grids 246 Fig. 7. The charge–discharge curves of poly[methanetetryl-tetra(thiomethylene)] Fig. 8. The charge–discharge of...