Fiber-shaped electric energy harvesting and storage device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2017201210-A1
Application number	US-201615241782-A
Country	US
Kind code	A1
Filing date	Aug 19, 2016
Priority date	Jan 8, 2016
Publication date	Jul 13, 2017
Grant date	—

Abstract

A fiber-shaped electric energy harvesting and storage device includes a substrate having a fiber shape, a lithium ion storage unit disposed to surround the substrate, and a plurality of photoelectric conversion units disposed to surround the lithium ion storage unit.

First claim

What is claimed is:

1 . An electric energy harvesting and storage device comprising:
a substrate having a fiber shape; a lithium ion storage unit disposed to surround the substrate; and a plurality of photoelectric conversion units disposed to surround the lithium ion storage unit.

2 . The electric energy harvesting and storage device of claim 1 , wherein the photoelectric conversion units are spaced apart from one another in a length direction of the substrate and are serially connected to one another.

3 . The electric energy harvesting and storage device of claim 1 , wherein the lithium ion storage unit comprises:
a cathode having a fiber shape and disposed around the substrate; an anode having a fiber shape and disposed around the substrate; a first cylindrical tube disposed to be spaced apart from the substrate and surround the substrate; and a first electrolyte disposed to fill a space between the substrate and the first cylindrical tube.

4 . The electric energy harvesting and storage device of claim 3 , wherein the cathode and the anode wind the substrate.

5 . The electric energy harvesting and storage device of claim 3 , wherein each of the cathode and the anode comprises:
aligned multi-wall carbon nanotubes; and active material nanoparticles attached to the multi-wall carbon nanotubes.

6 . The electric energy harvesting and storage device of claim 3 , wherein each of the photoelectric conversion units comprises:
a counter electrode disposed on the first cylindrical tube; a photoanode disposed on the counter electrode; a second cylindrical tube disposed to be spaced apart from the first cylindrical tube and surround the first cylindrical tube; and a second electrolyte disposed to fill a space between the first cylindrical tube and the second cylindrical tube.

7 . The electric energy harvesting and storage device of claim 6 , wherein the counter electrode comprises aligned multi-wall carbon nanotubes disposed to surround the first cylindrical tube.

8 . The electric energy harvesting and storage device of claim 6 , wherein the photoanode winds the counter electrode in a spiral shape.

9 . The electric energy harvesting and storage device of claim 8 , wherein the photoanode comprises:
titanium wire disposed on the counter electrode; and titanium dioxide nanotubes vertically aligned on a surface of the titanium wire.

10 . The electric energy harvesting and storage device of claim 6 , wherein the photoanode of a photoelectric conversion unit of the photoelectric conversion units is electrically connected to the counter electrode of an adjacent photoelectric conversion unit thereof.

11 . The electric energy harvesting and storage device of claim 10 , wherein
the photoanode of the photoelectric conversion unit is electrically connected to the anode of the lithium ion storage unit, and the counter electrode of the photoelectric conversion unit is electrically connected to the cathode of the lithium ion storage unit.

12 . A method of manufacturing an electric energy harvesting and storage device, the method comprising:
preparing a substrate having a fiber shape; providing a lithium ion storage unit to surround the substrate; and providing a plurality of photoelectric conversion units to surround the lithium ion storage unit.

13 . The method of claim 12 , wherein the photoelectric conversion units are spaced apart from one another in a length direction of the substrate and are serially connected to one another.

14 . The method of claim 12 , wherein the providing the lithium ion storage unit comprises:
providing a cathode having a fiber shape and an anode having a fiber shape on the substrate; providing a first cylindrical tube to be spaced apart from the substrate and to surround the substrate; and providing a first electrolyte between the substrate and the first cylindrical tube.

15 . The method of claim 14 , wherein each of the cathode and the anode comprises:
aligned multi-wall carbon nanotubes; and active material nanoparticles attached to the aligned multi-wall carbon nanotubes.

16 . The method of claim 14 , wherein the providing the photoelectric conversion units comprises:
providing a counter electrode on the first cylindrical tube; providing a photoanode on the counter electrode; providing a second cylindrical tube to be spaced apart from the first cylindrical tube and to surround the first cylindrical tube; and providing a second electrolyte between the first cylindrical tube and the second cylindrical tube.

17 . The method of claim 16 , wherein the photoanode winds the counter electrode in a spiral shape.

18 . The method of claim 16 , wherein the photoanode of each of the photoelectric conversion units is electrically connected to the counter electrode of an adjacent photoelectric conversion unit thereof.

Assignees

• Samsung Electronics Co Ltd
• Univ Fudan

Inventors

• Peng Huisheng
• Sun Hao
• Jiang Yishu

Classifications

• H02S40/38 Primary

  Energy storage means, e.g. batteries, structurally associated with PV modules · CPC title

• H01G9/2031

  comprising titanium oxide, e.g. TiO2 (H01G9/2036 takes precedence) · CPC title

• H01G9/2022

  characterized by he counter electrode · CPC title

• H02S30/20

  Collapsible or foldable PV modules · CPC title

• H01G9/2004

  characterised by the electrolyte, e.g. comprising an organic electrolyte · CPC title