Secondary battery electrode, and method for producing same
地域：
Seoul
摘要
A method for producing a secondary battery electrode, according to the present invention, comprises: a slicing step for producing an active material film by slicing an active material bulk; and a binding step for combining a current collector and the active material film. A method for producing a secondary battery electrode according to the present invention produces an active material film by slicing an active material bulk, which is a free-standing molded body or pellet, thus allowing binder-free active material film to be produced, and as no actual restrictions exist for the thickness of the active material film, thick active material film can be produced, and thus electrodes having high-loading and high composite density can be produced.
說明書
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
In the conventional technique of producing the active material layer using the electrode active material slurry, after applying the electrode active material slurry and drying it, rolling is performed, whereby the porosity in the surface and the inside of the active material layer varies and there is a risk that the pores on the active material layer surface are blocked. However, in the present invention, since the active material film is produced by slicing the active material bulk, the active material film has uniform porosity in the thickness direction of the film, and the active material film may have substantially the same porosity and pore structure, regardless of the position in the thickness direction.
意見反饋
使用該功能遇到問題