Stretchable triboelectric generator, stretchable electricity storage device, and wearable electronic device

US9887644B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9887644-B2
Application numberUS-201514685569-A
CountryUS
Kind codeB2
Filing dateApr 13, 2015
Priority dateJul 30, 2014
Publication dateFeb 6, 2018
Grant dateFeb 6, 2018

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

Disclosed herein are a stretchable triboelectric generator, a stretchable electricity storage device and a wearable electronic device. The stretchable triboelectric generator comprises a first stretchable triboelectric generation part comprising a first fabric layer and a first friction layer on the first fabric layer and a second stretchable triboelectric generation part comprising a second fabric layer and a second friction layer on the second fabric layer. The stretchable electricity storage device comprises at least one of a stretchable battery or a stretchable supercapacitor. The stretchable electricity storage device may be connected to the stretchable triboelectric generator and may store electricity generated by the stretchable triboelectric generator. The wearable electronic device comprises the stretchable triboelectric generator, the stretchable electricity storage device and a sensor connected electrically to at least one of the stretchable triboelectric generator or the stretchable electricity storage device to sense vital signs, bio signals, or body's movement changes.

First claim

Opening claim text (preview).

What is claimed is: 1. A stretchable triboelectric generator, comprising: a first stretchable triboelectric generation part comprising a first fabric layer and a first friction layer on the first fabric layer; and a second stretchable triboelectric generation part comprising a second fabric layer and a second friction layer on the second fabric layer, wherein the first friction layer comprises first friction patterns and second friction patterns disposed alternatingly, and the second friction layer comprises third friction patterns and fourth friction patterns disposed alternatingly. 2. The stretchable triboelectric generator of claim 1 , wherein a work function of the first friction layer is different from a work function of the second friction layer. 3. The stretchable triboelectric generator of claim 1 , wherein a charge amount by triboelectrification of the first friction layer and the second friction layer is determined by a difference between a work function of the first friction layer and that of the second friction layer. 4. The stretchable triboelectric generator of claim 1 , wherein the first friction layer comprises PEIE and the second friction layer comprises silicone rubber. 5. The stretchable triboelectric generator of claim 1 , wherein the first friction patterns, the second friction patterns, the third friction patterns, and the fourth friction patterns have different surface roughnesses. 6. The stretchable triboelectric generator of claim 1 , wherein the first friction patterns comprise polyurethane, the second friction patterns comprise polyimide, the third friction patterns comprise polydimethylsiloxane, and the fourth friction patterns comprise aluminum (Al). 7. The stretchable triboelectric generator of claim 1 , wherein the first friction patterns and the second friction patterns have substantially the same thickness, and the third friction patterns and the fourth friction patterns have substantially the same thickness. 8. The stretchable triboelectric generator of claim 1 , wherein the first fabric layer and the second fabric layer comprise at least one of conductive nylon fabric or conductive carbon fabric.

Assignees

Inventors

Classifications

  • H02N1/04Primary

    Friction generators · CPC title

  • Determining posture transitions · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9887644B2 cover?
Disclosed herein are a stretchable triboelectric generator, a stretchable electricity storage device and a wearable electronic device. The stretchable triboelectric generator comprises a first stretchable triboelectric generation part comprising a first fabric layer and a first friction layer on the first fabric layer and a second stretchable triboelectric generation part comprising a second fa…
Who is the assignee on this patent?
Seoul Nat Univ R&Db Foundation
What technology area does this patent fall under?
Primary CPC classification H02N1/04. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Feb 06 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).