Light Transmissive Battery and Power Generating Glass

Patent metadata

Field	Value
Publication number	US-2021384547-A1
Application number	US-201917287230-A
Country	US
Kind code	A1
Filing date	Nov 6, 2019
Priority date	Nov 20, 2018
Publication date	Dec 9, 2021
Grant date	—

Abstract

Provided is a light-transmissive battery that transmits visible light. A light-transmissive battery includes a positive electrode including an insulating transparent cover body and a positive-electrode current collector layer and a positive electrode layer sequentially stacked over the insulating transparent cover body; a negative electrode including an insulating transparent cover body and a negative-electrode current collector layer and a negative electrode layer sequentially stacked over the insulating transparent cover body; and a transparent electrolyte disposed between the positive electrode layer and the negative electrode layer that are opposed to each other. Each of the positive-electrode current collector layer, the negative-electrode current collector layer, the positive electrode layer, and negative electrode layer is formed to a thickness that allows the layer to transmit visible light.

First claim

1 . A light-transmissive battery comprising:
a positive electrode including a positive-electrode current collector layer and a positive electrode layer sequentially stacked over a first insulating transparent cover body; a negative electrode including and a negative-electrode current collector layer and a negative electrode layer sequentially stacked over a second insulating transparent cover body; and a transparent electrolyte layer arranged between the positive electrode layer and the negative electrode layer that are opposed to each other,
wherein:
each of the positive-electrode current collector layer, the negative-electrode current collector layer, the positive electrode layer, and the negative electrode layer has a thickness that suppresses absorption of visible light among incident light and promotes transmission of the visible light through the layer.

2 . The light-transmissive battery according to claim 1 , wherein each of the positive electrode layer and the negative electrode layer has a thickness in a range of 50 to 200 nm and is a single layer of single metal oxide or composite metal oxide containing a substance capable of absorbing and desorbing lithium ions.

3 . The light-transmissive battery according to claim 1 , wherein each of the positive-electrode current collector layer and the negative-electrode current collector layer has a thickness in a range of 100 to 300 nm, and is a transparent conductive film containing at least one of tin-doped indium oxide, tin oxide, fluorine-doped tin oxide, or zinc oxide.

4 . The light-transmissive battery according to claim 1 , wherein the electrolyte layer is an aqueous electrolytic solution or an organic electrolytic solution.

5 . The light-transmissive battery according to claim 1 , comprising:
an insulating adhesive arranged around the electrolyte layer, the insulating adhesive being adapted to bond the positive electrode and the negative electrode together; a first current collector tab that is an exposed portion of the positive-electrode current collector layer; and a second current collector tab that is an exposed portion of the negative-electrode current collector layer.

6 . An electricity-generating glass comprising:
two sheets of glass bonded together; and the light-transmissive battery according to claim 1 , the light-transmissive battery being disposed between bonding faces of the two sheets of glass.

7 . The light-transmissive battery according to claim 2 , wherein each of the positive-electrode current collector layer and the negative-electrode current collector layer has a thickness in a range of 100 to 300 nm, and is a transparent conductive film containing at least one of tin-doped indium oxide, tin oxide, fluorine-doped tin oxide, or zinc oxide.

8 . The light-transmissive battery according to claim 2 , wherein the electrolyte layer is an aqueous electrolytic solution or an organic electrolytic solution.

9 . The light-transmissive battery according to claim 3 , wherein the electrolyte layer is an aqueous electrolytic solution or an organic electrolytic solution.

10 . The light-transmissive battery according to claim 2 , comprising:
an insulating adhesive arranged around the electrolyte layer, the insulating adhesive being adapted to bond the positive electrode and the negative electrode together; a first current collector tab that is an exposed portion of the positive-electrode current collector layer; and a second current collector tab that is an exposed portion of the negative-electrode current collector layer.

11 . The light-transmissive battery according to claim 3 , comprising:
an insulating adhesive arranged around the electrolyte layer, the insulating adhesive being adapted to bond the positive electrode and the negative electrode together; a first current collector tab that is an exposed portion of the positive-electrode current collector layer; and a second current collector tab that is an exposed portion of the negative-electrode current collector layer.

12 . The light-transmissive battery according to claim 4 , comprising:
an insulating adhesive arranged around the electrolyte layer, the insulating adhesive being adapted to bond the positive electrode and the negative electrode together; a first current collector tab that is an exposed portion of the positive-electrode current collector layer; and a second current collector tab that is an exposed portion of the negative-electrode current collector layer.

13 . An electricity-generating glass comprising:
two sheets of glass bonded together; and the light-transmissive battery according to claim 2 , the light-transmissive battery being disposed between bonding faces of the two sheets of glass.

14 . An electricity-generating glass comprising:
two sheets of glass bonded together; and the light-transmissive battery according to claim 3 , the light-transmissive battery being disposed between bonding faces of the two sheets of glass.

15 . An electricity-generating glass comprising:
two sheets of glass bonded together; and the light-transmissive battery according to claim 4 , the light-transmissive battery being disposed between bonding faces of the two sheets of glass.

16 . An electricity-generating glass comprising:
two sheets of glass bonded together; and the light-transmissive battery according to claim 5 , the light-transmissive battery being disposed between bonding faces of the two sheets of glass.

Assignees

• Nippon Telegraph & Telephone

Inventors

• Ono Yoko
• Minowa Hironobu
• Sakamoto Shuhei
• Komatsu Takeshi

Classifications

• H01M50/11

  having a chip structure, e.g. micro-sized batteries integrated on chips · CPC title

• H01M6/40

  Printed batteries {, e.g. thin film batteries} · CPC title

• H01M2220/30

  Batteries in portable systems, e.g. mobile phone, laptop · CPC title

• H01M50/186

  characterised by the disposition of the sealing members · CPC title

• H01M4/664

  Ceramic materials · CPC title