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

Patent metadata

Field	Value
Publication number	US-10153479-B2
Application number	US-201514886298-A
Country	US
Kind code	B2
Filing date	Oct 19, 2015
Priority date	Oct 21, 2014
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

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.

First claim

What is claimed is:

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.

Assignees

• Semiconductor Energy Lab

Inventors

• Momo Junpei
• Momma Yohei

Classifications

• H01M10/0404

  Machines for assembling batteries · CPC title

• H01M4/0438 Primary

  by electrochemical processing (electroless electrochemical plating C23C18/54) · CPC title

• H01M10/0409

  for cells with wound electrodes · CPC title

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title