Lithium-ion battery having switching elements, and method of manufacture thereof

Patent metadata

Field	Value
Publication number	US-11515576-B2
Application number	US-201916650654-A
Country	US
Kind code	B2
Filing date	Feb 22, 2019
Priority date	Feb 22, 2019
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A battery and a manufacturing method thereof are disclosed. The battery includes at least one battery cell and at least one switching element; each of the at least one switching element is respectively connected to one or more of the at least one battery cell to control the one or more of the at least one battery cell.

First claim

What is claimed is:

1. A lithium-ion battery, comprising:
at least one lithium-ion battery cell; and
at least one switching element;
wherein each of the at least one switching element is respectively connected to one or more of the at least one lithium-ion battery cell to control the one or more of the at least one lithium-ion battery cell;
the switching element is a thin film transistor; the lithium-ion battery further comprises a first power line;
the lithium-ion battery cell comprises a first electrode and a second electrode, and the first electrode is connected to the first power line through a first thin film transistor; wherein the first thin film transistor comprises a source electrode and a drain electrode, one of the source electrode and the drain electrode of the first thin film transistor is connected to the first electrode, and an other one of the source electrode and the drain electrode of the first thin film transistor is connected to the first power line;
each of the at least one lithium-ion battery cell comprises a first electrode current collector, a first electrode, an electrolyte layer, a second electrode, and a second electrode current collector, and the first electrode current collector, the first electrode, the electrolyte layer, the second electrode, and the second electrode current collector are disposed in a stack manner;
the first electrode current collector is in a same layer as one of a gate electrode layer and a source-drain electrode layer of the thin film transistor; and
the second electrode current collector is in a same layer as an other one of the gate electrode layer and the source-drain electrode layer of the thin film transistor.

2. The lithium-ion battery according to claim 1 , further comprising a second power line,
wherein the second electrode of the lithium-ion battery cell is connected to the second power line through a second thin film transistor, wherein the second thin film transistor comprises a source electrode and a drain electrode, one of the source electrode and the drain electrode of the second thin film transistor is connected to the second electrode, and an other one of the source electrode and the drain electrode of the second thin film transistor is connected to the second power line.

3. The lithium-ion battery according to claim 2 , further comprising a control circuit configured to control each of the at least one lithium-ion battery cell to be charged and discharged;
a gate electrode of the first thin film transistor and/or a gate electrode of the second thin film transistor is connected to the control circuit.

4. The lithium-ion battery according to claim 3 , wherein the first power line and/or the second power line is connected to the control circuit.

5. The lithium-ion battery according to claim 1 , wherein the electrolyte layer is a solid electrolyte layer.

6. A manufacturing method of a lithium-ion battery, comprising:
forming at least one lithium-ion battery cell; and
forming at least one switching element;
wherein each of the at least one switching element is formed to be respectively connected to one or more of the at least one lithium-ion battery cell to control the one or more of the at least one lithium-ion battery cell;
the forming the lithium-ion battery cell comprises forming a first electrode current collector, a first electrode, an electrolyte layer, a second electrode current collector, and a second electrode, and the first electrode current collector, the first electrode, the electrolyte layer, the second electrode current collector, and the second electrode are formed in a stack manner; and
the first electrode current collector and one of the gate electrode layer and the source-drain electrode layer are formed by using a same film layer.

7. The manufacturing method of the lithium-ion battery according to claim 6 , wherein the switching element is a thin film transistor; and forming the thin film transistor comprises forming a gate electrode layer and a source-drain electrode layer.

8. The manufacturing method of the lithium-ion battery according to claim 6 , wherein the second electrode current collector and an other one of the gate electrode layer and the source-drain electrode layer are formed by using a same film layer.

9. The manufacturing method of the lithium-ion battery according to claim 6 , wherein the electrolyte layer is a solid electrolyte layer.

Assignees

• Beijing Boe Technology Dev Co Ltd

Inventors

• Zhou Quanguo
• Jiang Lipeng
• Zhou Lijia
• Wang Zhidong
• Tang Hao
• Cheng Jiuyang
• Yang Qingguo
• Lan Ronghua

Classifications

• H01M10/058

  Construction or manufacture · CPC title

• H01M10/0525 Primary

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• Y02P70/50

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

• H01M10/0565

  Polymeric materials, e.g. gel-type or solid-type · CPC title

• H01M10/0562

  Solid materials · CPC title