Page 534 - Handbook of Battery Materials

16.3 SEI Formation on Carbonaceous Electrodes 507

70
60
50
A.C. (%) 40

30
20
10
0
0 5 10 15 20
(a) Sputtering Time (min)
LiF (B) Polymer (B)
LiF (CS) Polymer (CS)
20
18
16
A.C. (%) 14
12
10
6 8
4
2
0
0 5 10 15 20
(b) Sputtering Time (min)

carbonate (B) carbonate (CS)
semicarbonate (B) semicarbonate (CS)
40
Atomic Percentage (%) 20
30

10

0
0 5 10 15 20
(c) Sputtering Time (min)
LiOH (B) Li-O-C (B)
LiOH (C.S) Li-O-C (C.S)

Figure 16.11 Depth profile of estimated SEI composition
on the basal (B) and cross section (CS) plane of HOPG,
1.2mol L −1 LiAsF 6 /EC–DEC (1 : 2) (Part III Chapter 14).