(19)
(11) EP 4 119 213 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
22.03.2023 Bulletin 2023/12

(43) Date of publication:
18.01.2023 Bulletin 2023/03

(21) Application number: 22783414.0

(22) Date of filing: 18.03.2022
(51) International Patent Classification (IPC): 
B01D 29/35(2006.01)
B01D 29/96(2006.01)
 B01D 35/00(2006.01)
(52) Cooperative Patent Classification (CPC):
Y02E 60/10; B01D 35/02; B05B 15/00; H01M 4/04; B01D 33/15; B01D 29/356
(86) International application number:
PCT/CN2022/081753
(87) International publication number:
WO 2022/227925 (03.11.2022 Gazette 2022/44)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 29.04.2021 CN 202120924138 U

(71) Applicant: Contemporary Amperex Technology Co., Limited
Ningde, Fujian 352100 (CN)

(72) Inventors:
  • YAN, Shengyun
    Ningde Fujian 352100 (CN)
  • HUANG, Biao
    Ningde Fujian 352100 (CN)
  • WEN, Yuqian
    Ningde Fujian 352100 (CN)
  • DOU, Jianxin
    Ningde Fujian 352100 (CN)
  • GUO, Zhengshan
    Ningde Fujian 352100 (CN)

(74) Representative: Laufhütte, Dieter 
Lorenz Seidler Gossel Rechtsanwälte Patentanwälte Partnerschaft mbB Widenmayerstraße 23
80538 München
80538 München (DE)

   


(54) SLURRY FILTERING DEVICE AND COATING SYSTEM


(57) Embodiments of this application relate to the field of lithium battery production technologies and disclose a slurry filtering apparatus and a coating system. The slurry filtering apparatus includes a rotating filter element and a gravity filter. The gravity filter is provided with a feed port and a first discharge port. A height of the feed port on the gravity filter is greater than that of the first discharge port on the gravity filter. The rotating filter element is connected to the feed port and is configured to provide a positive-pressure filtered slurry to the gravity filter. The first discharge port is configured to convey a slurry filtered by the gravity filter to a coating apparatus. According to the above manner, the embodiments of this application reduce a quantity of large-particle soft substances formed by deposition and agglomeration in the slurry, thereby improving coating quality.