IP Library › Granted Patent US 12,729,909
Granted Patent B2
US 12,729,909 · App. 18/348,681 · Granted Sep 8, 2026

Electrode sheet oven drying apparatus, battery production device, and electrode sheet oven drying method

Inventors: Shengdong Chen (Ningde, CN); Lei Song (Ningde, CN); Qiang Liu (Ningde, CN); Chen Li (Ningde, CN)
Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
F26B3/04F26B21/006F26B21/20F26B21/33F26B21/37F26B21/50F26B25/14H01M4/88
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,729,909
App. No.
18/348,681
Granted
Sep 8, 2026
Kind
B2
Abstract

An electrode sheet oven drying apparatus includes an oven provided with an oven drying chamber, an oven drying assembly positioned in the oven drying chamber, an air discharge pipe connected to the oven drying chamber, a first air volume regulating valve installed at one end of the air discharge pipe connected to the oven drying chamber, a humidity detection module installed in the oven drying chamber and configured to detect a humidity in the oven drying chamber, and a control module communicatively connected to the humidity detection module and configured to regulate the first air volume regulating valve according to the humidity in the oven drying chamber.

Claims (40)

1 . An electrode sheet oven drying apparatus, comprising:

an oven with an oven drying chamber;

an oven drying assembly positioned in the oven drying chamber;

an air discharge pipe connected to the oven drying chamber;

a first air volume regulating valve installed in the air discharge pipe;

a humidity detection module installed in the oven drying chamber, and configured to detect a humidity in the oven drying chamber;

a control module communicatively connected to the humidity detection module, and configured to regulate the first air volume regulating valve according to the humidity in the oven drying chamber;

a circulating air pipe with one end connected to the oven drying chamber and another end connected to the oven drying assembly; and

a pressure difference detection module communicatively connected to the control module, and provided with a first detection end and a second detection end, the first detection end extending into one end of the air discharge pipe connected to the oven drying chamber, the second detection end extending into one end of the circulating air pipe connected to the oven drying chamber, and the pressure difference detection module being configured to detect an air pressure difference between the end of the air discharge pipe connected to the oven drying chamber and the end of the circulating air pipe connected to the oven drying chamber.

2 . The electrode sheet oven drying apparatus according to claim 1 , wherein:

the oven drying assembly comprises an upper compartment and a lower compartment arranged apart, a plurality of first air nozzles being arranged on one side of the upper compartment facing the lower compartment, a plurality of second air nozzles being arranged on one side of the lower compartment facing the upper compartment; and

the humidity detection module is positioned between the first air nozzles and the second air nozzles.

3 . The electrode sheet oven drying apparatus according to claim 1 , further comprising:

a fresh air pipe with one end connected to the circulating air pipe and another end communicated to outside.

4 . The electrode sheet oven drying apparatus according to claim 1 , further comprising:

a second air volume regulating valve installed in the circulating air pipe.

5 . The electrode sheet oven drying apparatus according to claim 3 , further comprising:

a third air volume regulating valve installed in the fresh air pipe.

6 . The electrode sheet oven drying apparatus according to claim 1 , further comprising:

a circulating fan installed on the circulating air pipe.

7 . The electrode sheet oven drying apparatus according to claim 6 , further comprising:

a heating module installed on the circulating air pipe.

8 . A battery production device, comprising:

the electrode sheet oven drying apparatus according to claim 1 ; and

a coating apparatus positioned upstream of the electrode sheet oven drying apparatus.

9 . An electrode sheet oven drying method, comprising:

detecting a humidity in an accommodating cavity of the electrode sheet oven drying apparatus according to claim 1 ; and

regulating a volume of steam discharged from the accommodating cavity according to the humidity in the accommodating cavity.

10 . An electrode sheet oven drying apparatus, comprising:

an oven with an oven drying chamber;

an oven drying assembly positioned in the oven drying chamber;

an air discharge pipe connected to the oven drying chamber;

a first air volume regulating valve installed in the air discharge pipe;

a humidity detection module installed in the oven drying chamber, and configured to detect a humidity in the oven drying chamber;

a control module communicatively connected to the humidity detection module, and configured to regulate the first air volume regulating valve according to the humidity in the oven drying chamber;

a circulating air pipe with one end connected to the oven drying chamber and another end connected to the oven drying assembly;

a fresh air pipe with one end connected to the circulating air pipe and another end communicated to outside;

a second air volume regulating valve installed in the fresh air pipe; and

a pressure difference detection module communicatively connected to the control module, the pressure difference detection module being configured to detect an air pressure in the oven drying chamber to control the second air volume regulating valve;

wherein the pressure difference detection module is provided with a first detection end and a second detection end, the first detection end extending into one end of the air discharge pipe connected to the oven drying chamber, the second detection end extending into one end of the circulating air pipe connected to the oven drying chamber, and the pressure difference detection module being configured to detect an air pressure difference between the end of the air discharge pipe connected to the oven drying chamber and the end of the circulating air pipe connected to the oven drying chamber.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 6, 2024
From: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
To: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
Reel/Frame 068338/0402 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 7, 2023
From: CHEN, SHENGDONG; SONG, LEI; LIU, QIANG; LI, CHEN
To: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Reel/Frame 064185/0963 →
Priority Claims (1)
CN 202221589185.0 · Jun 24, 2022 · national
Continuity (2)
Continuation PCTCN2023085005 · Mar 30, 2023
Related Publication 20230417483A1 · Dec 28, 2023
References Cited (14)
US 10199635B2 · Ho · 2019 [cited by examiner]
US 20050048861A1 · Kifune · 2005 [cited by examiner]
CN 201837217U · 2011 [cited by applicant]
CN 110742297A · 2020 [cited by applicant]
CN 112432446A · 2021 [cited by applicant]
CN 114146879A · 2022 [cited by applicant]
CN 217330617U · 2022 [cited by applicant]
GB 1513850A · 1978 [cited by applicant]
JP H0550023A · 1993 [cited by applicant]
KR 20210050721A · 2021 [cited by applicant]
The World Intellectual Property Organization (WIPO) International Search Report and Written Opinion for PCT/CN2023/085005 Jul. 13, 2023 18 pages (Including English translation). [cited by applicant]
The China National Intellectual Property Administration (CNIPA) Notice of Grant of Utility Model Patent Rights for CN Application No. 202221589185.0 Jun. 30, 2023 2 Pages (Including English translation). [cited by applicant]
State Intellectual Property Office of China Notice of Grant of Utility Model Patent for Application No. 202221589185.0 Jun. 30, 2022 2 pages (including translation). [cited by applicant]
The European Patent Office (EPO) The Extended European Search Report for Application No. 23733831.4, Sep. 30, 2024 6 Pages. [cited by applicant]