IP Library › Granted Patent US 10,153,479
Granted Patent B2
US 10,153,479 · App. 14/886,298 · Granted Dec 11, 2018

Apparatus, secondary battery, electronic device, and battery management unit

Inventors: Junpei Momo (Kanagawa, JP); Yohei Momma (Kanagawa, JP)
Assignee: Semiconductor Energy Laboratory Co., Ltd.
H01M4/0438H01M10/0404H01M10/0409
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Quick Facts
Patent No.
US 10,153,479
App. No.
14/886,298
Granted
Dec 11, 2018
Kind
B2
Abstract

A fabricating method and a fabricating apparatus for a lithium-ion secondary battery having stable charge characteristics and lifetime characteristics are provided. A positive electrode is subjected to an electrochemical reaction in a large amount of electrolyte solution in advance before a secondary battery is completed. In this manner, the positive electrode can have stability. In a manner similar to that of the positive electrode, a negative electrode is also subjected to the electrochemical reaction in a large amount of the electrolyte solution in advance, whereby a high reliable secondary battery can be manufactured.

Claims (35)

1. An apparatus comprising:

a container;

a first electrode inside the container;

a second electrode that is rolled up;

a first control device outside the container;

a first cord configured to electrically connect the first control device to the first electrode;

a second cord configured to electrically connect the first control device to the second electrode to be provided inside the container;

a gas outlet positioned inside the container and directly under a bottom of the second electrode;

a lid configured to be put on a top of the container;

an exhaust port provided on the lid; and

a cover in contact with the second electrode,

wherein the cover is positioned between the second electrode and the gas outlet.

2. The apparatus according to claim 1 , wherein the first electrode is provided at a bottom of the container.

3. The apparatus according to claim 1 , wherein the gas outlet is coupled with a pipe introduced inside the container through the exhaust port.

4. The apparatus according to claim 3 , wherein the pipe is provided with a second control device outside the container.

5. The apparatus according to claim 3 , wherein the pipe is coupled with the first control device.

6. The apparatus according to claim 1 , comprising a heater adjacent to the container.

7. The apparatus according to claim 6 , wherein the heater is provided outside the container.

8. An apparatus comprising:

a container;

a first electrode inside the container;

a second electrode that is rolled up;

a first control device outside the container;

a first cord configured to electrically connect the first control device to the first electrode;

a second cord configured to electrically connect the first control device to the second electrode to be provided inside the container;

a gas outlet positioned inside the container and directly under a bottom of the second electrode;

a cooler over the container, wherein the cooler has a shape projecting toward the container; and

a cover in contact with the second electrode,

wherein the cover is positioned between the second electrode and the gas outlet.

9. The apparatus according to claim 8 , comprising a heater adjacent to the container.

10. The apparatus according to claim 9 , wherein the heater is provided outside the container.

11. The apparatus according to claim 8 , comprising a second control device coupled with the cooler through a first pipe and a second pipe.

12. The apparatus according to claim 1 , wherein the second electrode is wound one or more times.

13. The apparatus according to claim 1 , wherein the gas outlet is projected toward the bottom of the second electrode.

14. The apparatus according to claim 8 , wherein the second electrode is wound one or more times.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 19, 2015
From: MOMO, JUNPEI; MOMMA, YOHEI
To: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Reel/Frame 036822/0960 →
Priority Claims (2)
JP 2014-214146 · Oct 21, 2014 · national
JP 2014-219174 · Oct 28, 2014 · national
Continuity (1)
Related Publication 20160111710A1 · Apr 21, 2016