Title:
EXTRUSION HEAD FOR MOLDING POLE PIECE AND MOLDING DEVICE COMPRISING SAME, AND MOLDING METHOD AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/056983
Kind Code:
A1
Abstract:
An extrusion head (1) for molding a pole piece and a molding device comprising same, and a molding method and a preparation method therefor. The extrusion head (1) comprises an extrusion head (1) housing, and a through extrusion channel (6) is provided inside the extrusion head (1) housing in an extrusion direction; and the extrusion channel (6) is divided into a transition cavity (61) and a molding cavity (62) that are in sequential butt joint and communication in the extrusion direction, and the diameter of the annular surface of the inner wall of the transition cavity (61) is gradually reduced in the extrusion direction.
Inventors:
DENG HUIHUI (CN)
CAO LANG (CN)
SUN PEILING (CN)
WANG PINGAO (CN)
ZHANG JUN (CN)
ZHU YUAN (CN)
LIU JIANHUA (CN)
LIU JINCHENG (CN)
CAO LANG (CN)
SUN PEILING (CN)
WANG PINGAO (CN)
ZHANG JUN (CN)
ZHU YUAN (CN)
LIU JIANHUA (CN)
LIU JINCHENG (CN)
Application Number:
PCT/CN2020/121456
Publication Date:
March 24, 2022
Filing Date:
October 16, 2020
Export Citation:
Assignee:
EVE ENERGY CO LTD (CN)
EVE HYPERPOWER BATTERIES INC (CN)
EVE HYPERPOWER BATTERIES INC (CN)
International Classes:
H01M4/04
Foreign References:
| CN110993888A | 2020-04-10 | |||
| CN1802246A | 2006-07-12 | |||
| CN102484243A | 2012-05-30 | |||
| CN105144324A | 2015-12-09 | |||
| CN109351793A | 2019-02-19 | |||
| US6939383B2 | 2005-09-06 | |||
| CN104201381A | 2014-12-10 | |||
| CN110407300A | 2019-11-05 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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