Battery having high battery capacity

Patent metadata

Field	Value
Publication number	US-11283105-B2
Application number	US-201916394983-A
Country	US
Kind code	B2
Filing date	Apr 25, 2019
Priority date	Aug 27, 2018
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

The present disclosure relates to a battery, including a first electrode layer, a second electrode layer, and an electrolyte disposed between the first and second electrode layers. The first electrode layer at least comprises a first electrode and a second electrode, which are spaced apart from each other. An electrolyte is disposed between the first electrode and the second electrode. A polarity of the first electrode is opposite of a polarity of the second electrode. The second electrode layer includes a third electrode disposed on an end opposite to the first electrode and a fourth electrode disposed on an end opposite to the second electrode. An electrolyte is disposed between the third electrode and the fourth electrode. A polarity of the third electrode is the same as that of the second electrode, and a polarity of the fourth electrode is the same as that of the first electrode.

First claim

What is claimed is:

1. A battery having high battery capacity, comprising:
a first electrode layer, a second electrode layer, and an electrolyte disposed between the first electrode layer and the second electrode layer, wherein:
the first electrode layer at least comprises a first electrode and a second electrode, the first electrode and the second electrode being spaced apart from each other, an electrolyte being disposed between the first electrode and the second electrode, and a polarity of the first electrode being opposite to a polarity of the second electrode;
the second electrode layer comprises a third electrode disposed on an end opposite to the first electrode and a fourth electrode disposed on an end opposite to the second electrode, an electrolyte being disposed between the third electrode and the fourth electrode, a polarity of the third electrode being the same as the polarity of the second electrode, and a polarity of the fourth electrode being the same as the polarity of the first electrode; and
a first electrode current collector is disposed outside the first electrode, a second electrode current collector is disposed outside the second electrode, a third electrode current collector is disposed outside the third electrode, and a fourth electrode current collector is disposed outside the fourth electrode.

2. The battery having high battery capacity of claim 1 , wherein a distance between the first electrode and the third electrode is equal to a distance between the first electrode and the second electrode.

3. The battery having high battery capacity of claim 1 , wherein the first electrode layer comprises a plurality of first electrodes and a plurality of second electrodes, the plurality of first electrodes and the plurality of second electrodes being spaced apart from each other, the third electrode being disposed on the end opposite to each of the first electrodes, and the fourth electrode being disposed on the end opposite to each of the second electrodes.

4. The battery having high battery capacity of claim 1 , wherein,
an area of a lower surface of the first electrode current collector is greater than or equal to an area of an upper surface of the first electrode;
an area of a lower surface of the second electrode current collector is greater than or equal to an area of an upper surface of the second electrode;
an area of an upper surface of the third electrode current collector is greater than or equal to an area of a lower surface of the third electrode; and
an area of an upper surface of the fourth electrode current collector is greater than or equal to an area of a lower surface of the fourth electrode.

5. The battery having high battery capacity of claim 1 , wherein the electrolyte is an all-solid-state electrolyte.

6. The battery having high battery capacity of claim 1 , wherein the battery having high battery capacity comprises a first electrode line connected to the first electrode current collector, a second electrode line connected to the second electrode current collector, a third electrode line connected to the third electrode current collector, and a fourth electrode line connected to the fourth electrode current collector.

7. The battery having high battery capacity of claim 3 , wherein:
the second electrode layer comprises a plurality of third electrodes and a plurality of fourth electrodes; and
a sum of the first electrodes and the second electrodes is greater than 3, and a sum of the third electrodes and the fourth electrodes is greater than 3.

8. The battery having high battery capacity of claim 1 , wherein both the first electrode and the fourth electrode are anodes, and both the second electrode and the third electrode are both cathodes; or
both the first electrode and the fourth electrode are cathodes, and both the second electrode and the third electrode are both anodes.

9. A manufacturing method of a battery having high battery capacity, comprising:
providing a first substrate;
coating a first electrode material on the first substrate to form a first electrode material layer and etching the first electrode material layer to form a first electrode;
coating a second electrode material on the first substrate to form a second electrode material layer and etching the second electrode material layer to form a second electrode spaced apart from the first electrode to form a first electrode layer, wherein the first electrode has a polarity opposite that of the second electrode;
coating an electrolyte material between the first electrode and the second electrode, on the first electrode, and on the second electrode to form an electrolyte;
arranging a third electrode on the end opposite to the first electrode and arranging a fourth electrode on the end opposite to the second electrode to form a second electrode layer, wherein the polarity of the third electrode is the same as the polarity of the second electrode, and the polarity of the fourth electrode is the same as the polarity of the first electrode; and
disposing a first electrode current collector outside the first electrode, disposing a second electrode current collector outside the second electrode, disposing a third electrode current collector outside the third electrode, and disposing a fourth electrode current collector outside the fourth electrode.

10. The method of claim 9 , wherein a distance between the first electrode and the third electrode is equal to a distance between the first electrode and the second electrode.

11. The method of claim 9 , wherein the first electrode layer comprises a plurality of first electrodes and a plurality of second electrodes, the plurality of first electrodes and the plurality of second electrodes being spaced apart from each other, the third electrode being disposed on the end opposite to each of the first electrodes, and the fourth electrode being disposed on the end opposite to each of the second electrodes.

12. The method according to claim 9 , wherein:
an area of a lower surface of the first electrode current collector is greater than or equal to an area of an upper surface of the first electrode;
an area of a lower surface of the second electrode current collector is greater than or equal to an area of an upper surface of the second electrode;
an area of an upper surface of the third electrode current collector is greater than or equal to an area of a lower surface of the third electrode; and
an area of an upper surface of the fourth electrode current collector is greater than or equal to an area of a lower surface of the fourth electrode.

13. The method of claim 9 , wherein the electrolyte is an all-solid-state electrolyte.

14. The method of claim 9 , further comprising:
forming a first electrode line connected to the first electrode current collector, a second electrode line connected to the second electrode current collector, a third electrode line connected to the third electrode current collector, and a fourth electrode connected to the fourth electrode current collector.

15. The method of claim 11 , wherein:
the second electrode layer comprises a plurality of third electrodes and a plurality of fourth electrodes; and
a sum of the first electrodes and the second electrodes is greater than 3, and a sum of the third electrodes and the fourth electrodes is greater than 3.

16. The method of claim 9 , wherein both the first electrode and the fourth electrode are anodes, and both the second electrode and the third electrode are both cathodes; or
both the first electrode and the fourth electrode are cathodes, and both the second electrod

Assignees

• Boe Technology Group Co Ltd

Inventors

• Guo Meng
• Lee Yung-Chiang
• Zhou Quanguo
• Lan Ronghua

Classifications

• H01M50/531

  Electrode connections inside a battery casing · CPC title

• H01M2300/0065

  Solid electrolytes · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• Y02P70/50

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

• H01M10/052

  Li-accumulators · CPC title