US 12,394,778 B2
Electrode production apparatus
Tetsuya Mimura, Chiryu (JP); Katsushi Enokihara, Toyota (JP); Masanori Kitayoshi, Toyota (JP); and Shou Ishiyama, Toyota (JP)
Assigned to PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken (JP)
Filed by Prime Planet Energy & Solutions, Inc., Tokyo (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken (JP)
Filed on Mar. 14, 2022, as Appl. No. 17/693,429.
Claims priority of application No. 2021-041686 (JP), filed on Mar. 15, 2021.
Prior Publication US 2022/0293906 A1, Sep. 15, 2022
Int. Cl. H01M 4/04 (2006.01); B05C 1/08 (2006.01); H01M 4/139 (2010.01)
CPC H01M 4/0435 (2013.01) [B05C 1/0813 (2013.01); B05C 1/083 (2013.01); H01M 4/0404 (2013.01); H01M 4/139 (2013.01)] 3 Claims
OG exemplary drawing
 
1. An electrode production apparatus, comprising:
a first roll;
a second roll provided adjacent to and substantially parallel to the first roll;
a third roll provided adjacent to and substantially parallel to the second roll;
a rolling gap for rolling an electrode material to form a mixture coated film, formed between the first roll and the second roll;
a compression bonding gap for compressedly bonding the mixture coated film and an electrode current collector, formed between the second roll and the third roll; and
a spring mechanism configured to bias the third roll toward the second roll, the compression bonding gap fluctuating in response to fluctuation of reaction force from the mixture coated film,
wherein the first roll and the second roll are arranged substantially parallel along a first direction, and the second roll and the third roll are arranged substantially parallel along a second direction orthogonal to the first direction,
wherein the spring mechanism includes:
a bearing part configured to rotatably support the third roll;
an orthogonal slide mechanism configured to mutually convert stress along the first direction and stress along the second direction; and
an extension and contraction mechanism configured to extend and contract along the first direction, and
wherein the orthogonal slide mechanism is composed of an elastic material.