Method for forming pattern, structural body, method for producing comb-shaped electrode, and secondary cell

Patent metadata

Field	Value
Publication number	US-10243198-B2
Application number	US-201414229131-A
Country	US
Kind code	B2
Filing date	Mar 28, 2014
Priority date	Mar 29, 2013
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A method for forming a pattern, a structural body, a method for producing a comb-shaped electrode, and a secondary cell. The pattern forming method, in which n patterns (n≥2) are formed on a support, includes forming a first resist layer on the support surface; and repeating: forming a guide hole through a kth resist layer by exposure and development, filling a kth pattern material into the guide hole by a screen printing process, removing the kth resist layer, and forming a (k+1)th resist layer on the support and all pattern materials, regarding kth (k=1 to n−1) pattern material and resist layer in order of k=1 to n−1; forming a guide hole and nth pattern material filling similarly, and removing the nth resist layer.

First claim

What is claimed is:

1. A method for forming an electrode on a support, said electrode comprising n patterns, wherein n is an integer of at least 2, wherein each pattern is formed from identical or different pattern materials, the method comprising:
forming a first resist layer by coating a resist composition on a surface of the support;
with respect to each of a kth pattern material and a kth resist layer in order from k=1 to k=n−1 (k: an integer of 1 to n−1), conducting the following (i) to (iv):
(i) forming a guide hole through a kth resist layer by exposure and development, wherein the guide hole penetrates up to the surface of the support through the kth resist layer;
(ii) filling a kth pattern material into the guide hole by a screen printing process;
(iii) removing the kth resist layer; and
(iv) forming a (k+1)th resist layer by coating a resist composition on the support and the 1st to kth pattern materials without removing the kth pattern material filled into the guide hole,
forming a guide hole through the (k+1)th resist layer by exposure and development, wherein the guide hole penetrates to the surface of the support through the (k+1)th resist layer, wherein the development is conducted with the (k+1)th resist layer being present on the pattern materials of from the first to the kth;
filling a (k+1)th pattern material into the guide hole by a screen printing process; and
removing the (k+1)th resist layer so as to obtain the electrode on the support, said electrode consisting of the 1st to the kth pattern materials and the nth pattern material; such that the 1st to (k+1)th resist layers are not present on the support.

2. The method according to claim 1 , wherein, in the development, the (k+1)th resist layer present on the first to kth pattern materials prevents the first to kth pattern materials from being in contact with the developer and flowing out.

3. The method according to claim 1 , wherein short circuit does not occur between the kth pattern material layer and the (k+1)th pattern material layer.

4. A method for producing a comb-shaped electrode, in which a positive electrode and a negative electrode are each formed into a comb shape and oppositely disposed so that parts of teeth of the comb shapes are alternately arranged, the method comprising:
forming a conductive layer on a surface of a substrate;
forming a current collector by patterning the conductive layer; and
setting the current collector to a support and forming the positive electrode and the negative electrode on the support by the method according to claim 1 .

5. A process of producing a secondary cell comprising a comb-shaped electrode, the process comprising forming the comb-shaped electrode by the method according to claim 4 .

6. The method according to claim 1 , wherein the electrode is a positive electrode.

7. The method according to claim 1 , wherein the electrode is a negative electrode.

Assignees

• Tokyo Ohka Kogyo Co Ltd

Inventors

• Asai Takahiro
• Ishikawa Kaoru

Classifications

• H01M4/0404 Primary

  by coating on electrode collectors · CPC title

• H01M4/0414

  by screen printing · CPC title

• H01M4/139

  Processes of manufacture · CPC title

• G03F7/20

  Exposure; Apparatus therefor (photographic printing apparatus for making copies G03B27/00) · CPC title

• G03F7/0397

  the macromolecular compound having an alicyclic moiety in a side chain · CPC title