Secondary battery having high rate capability and high energy density and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2016204464-A1
Application number	US-201614990162-A
Country	US
Kind code	A1
Filing date	Jan 7, 2016
Priority date	Jan 8, 2015
Publication date	Jul 14, 2016
Grant date	—

Abstract

A secondary battery includes a first electrode collector layer and a second electrode collector layer, which face each other, a plurality of first active material layers that electrically contact the first electrode collector layer and are substantially perpendicular to the first electrode collector layer, a plurality of second active material layers that electrically contact the second electrode collector layer and are substantially perpendicular to the second electrode collector layer, and a first conductor layer that electrically contacts the first electrode collector layer and is inserted into the plurality of first active material layers.

First claim

What is claimed is:

1 . A battery comprising:
a first electrode collector layer and a second electrode collector layer, which face each other; a plurality of first active material layers which electrically contact the first electrode collector layer and are substantially perpendicular to the first electrode collector layer; a plurality of second active material layers which electrically contact the second electrode collector layer and are substantially perpendicular to the second electrode collector layer; an electrolyte layer disposed between the plurality of first active material layers and the plurality of second active material layers, between the plurality of first active material layers and the second electrode collector layer, and between the plurality of second active material layers and the first electrode collector layer; and a first conductor layer which electrically contacts the first electrode collector layer and is interposed in the plurality of first active material layers.

2 . The battery of claim 1 , wherein the plurality of first active material layers contact a first surface of the first electrode collector layer, the plurality of second active material layers contact a second surface of the second electrode collector layer, and the first surface of the first electrode collector layer and the second surface of the second electrode collector layer face each other.

3 . The battery of claim 2 , wherein the plurality of first active material layers are substantially perpendicular to the first surface of the first electrode collector layer, and the plurality of second active material layers are substantially perpendicular to the second surface of the second electrode collector layer.

4 . The battery of claim 3 , wherein the plurality of first active material layers and the plurality of second active material layers have a plate shape and are alternately arranged in parallel to each other.

5 . The battery of claim 3 , wherein the first conductor layer has an extended plate shape which protrudes substantially perpendicular to the first surface of the first electrode collector layer.

6 . The battery of claim 5 , wherein the first conductor layer is inserted into at least one of the plurality of first active material layers, and two side surfaces of the first conductor layer contact the at least one of the plurality of first active material layers.

7 . The battery of claim 5 , wherein a first end of the first conductor layer contacts the first surface of the first electrode collector layer, and a second end of the first conductor layer contacts the electrolyte layer, wherein the second end is opposite to the first end.

8 . The battery of claim 5 , wherein a first end of the first conductor layer contacts the first surface of the first electrode collector layer, and a second end of the first conductor layer contacts at least one of the plurality of first active material layers, wherein the second end is opposite to the first end.

9 . The battery of claim 1 , wherein the electrolyte layer comprises a solid electrolyte.

10 . The battery of claim 1 , wherein the electrolyte layer is wound between the plurality of first active material layers and the plurality of second active material layers, between the plurality of first active material layers and the second electrode collector layer, and between the plurality of second active material layers and the first electrode collector layer.

11 . The battery of claim 1 , further comprising a second conductor layer which electrically contacts the second electrode collector layer and is inserted into the plurality of second active material layers, wherein the second conductor layer has an extended plate shape protruding from the second electrode collector layer.

12 . The battery of claim 11 , wherein the second conductor layer is inserted into at least one of the plurality of second active material layers, and two side surfaces of the second conductor layer contact the at least one of the plurality of second active material layers.

13 . The battery of claim 11 , wherein a first end of the second conductor layer contacts the second electrode collector layer, and a second end of the second conductor layer contacts the electrolyte layer, wherein the second end is opposite to the first end.

14 . The battery of claim 11 , wherein a first end of the second conductor layer contacts the second electrode collector layer, and a second end of the second conductor layer contacts at least one of the plurality of second active material layers, wherein the second end is opposite to the first end.

15 . The battery of claim 1 , wherein the plurality of first active material layers comprises a positive electrode active material including sintered polycrystalline ceramics which provides a positive electrode, and the first conductor layer comprises at least one metal material of palladium (Pd), gold (Au), platinum (Pt), and silver (Ag) and an alloy thereof.

16 . A battery comprising:
a first electrode collector layer having a plate shape; a plurality of first active material layers which electrically contact the first electrode collector layer and are substantially perpendicular to the first electrode collector layer; a conductor layer which electrically contacts the first electrode collector layer and is interposed in the plurality of first active material layers; a second active material layer which comprises a plurality of first portions alternately arranged in parallel to the plurality of first active material layers and a second portion which faces and is parallel to the first electrode collector layer and extends from the plurality of first portions; and an electrolyte layer which is disposed between the plurality of first active material layers and the plurality of first portions of the second active material layer, between the plurality of first active material layers and the second portion of the second active material layer, and between the plurality of first portions of the second active material layer and the first electrode collector layer.

17 . The battery of claim 16 , wherein the conductor layer is inserted into at least one of the plurality of first active material layers, and two side surfaces of the conductor layer contact the at least one of the plurality of first active material layers.

18 . The battery of claim 16 , wherein the conductor layer has an extended plate shape protruding substantially perpendicular to the first electrode collector layer.

19 . The battery of claim 16 , wherein a first end of the conductor layer contacts the first electrode collector layer and a second end of the conductor layer contacts the electrolyte layer, wherein the second end is opposite to the first end.

20 . The battery of claim 16 , wherein a first end of the conductor layer contacts the first electrode collector layer and a second end of the conductor layer contacts at least one of the plurality of first active material layers, wherein the second end is opposite to the first end.

21 . The battery of claim 16 , wherein the electrolyte layer comprises a solid electrolyte and is wound between the plurality of first active material layers and the plurality of first portions of the second active material layer, between the plurality of first active material layers and the second portion of the second active material layer, and between the plurality of first portions of the second active material layer and the first electrode colle

Assignees

• Samsung Electronics Co Ltd

Inventors

• Cho Kyunghoon
• Park Hwiyeol
• Heo Jin S
• Yang Hojung

Classifications

• H01M10/0562

  Solid materials · CPC title

• H01M10/0583

  of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators · CPC title

• H01M4/661

  Metal or alloys, e.g. alloy coatings (H01M4/669 take precedence) · CPC title

• H01M2300/0071

  Oxides · CPC title

• H01M4/0421

  involving vapour deposition · CPC title