Fig. 6 b) Rate capabilities of sulfur-deficient SnS in Na half-cells at 100, 300, 450, 600, then returning to 100 mA g−1.		
cycle number	discharge capacity/mAhg-1	charge capacity/mAhg-1
0	828.308	1596
1	778.656	896.892
2	725.17	812.234
3	687.71	761.772
4	656.554	722.858
5	631.554	692.882
6	628.158	730.352
7	621.507	649.888
8	614.218	637.169
9	605.511	627.004
10	597.163	618.194
11	507.37	532.52
12	505.702	517.021
13	500.376	512.634
14	495.756	508.027
15	491.316	503.735
16	447.406	462.787
17	446.282	455.013
18	443.583	452.433
19	440.852	449.919
20	438.069	447.281
21	518.957	593.774
22	509.839	558.278
23	501.611	545.498
24	494.072	535.37
25	487.257	526.866
26	481.085	519.885
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
