公开(公告)号：US11705549B2

公开(公告)日：2023-07-18

申请号：US16952087

申请日：2020-11-19

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ji-Won Choi ,  Jin Sang Kim ,  Chong Yun Kang ,  Seung Hyub Baek ,  Seong Keun Kim ,  Hyun-Cheol Song ,  Sang Tae Kim ,  Hyun Seok Lee

IPC: H01M4/04 ,  H01M10/052 ,  H01M4/58 ,  H01M4/02

CPC classification number: H01M4/0404 ,  H01M4/58 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/027

Abstract: Disclosed is a transparent anode thin film comprising a transparent anode active material layer, wherein the transparent anode active material layer comprises a Si-based anode active material having a composition represented by the following [Chemical Formula 1]:

SiNx  [Chemical Formula 1]



(wherein 0

公开(公告)号：US11837977B2

公开(公告)日：2023-12-05

申请号：US16953859

申请日：2020-11-20

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyun-Cheol Song ,  Chong Yun Kang ,  Jin Sang Kim ,  Ji-Won Choi ,  Seung Hyub Baek ,  Seong Keun Kim

IPC: H02N2/18 ,  H10N30/30 ,  H10N30/857

CPC classification number: H02N2/188 ,  H10N30/304 ,  H10N30/857

Abstract: Proposed is a self-resonance tuning piezoelectric energy harvester with broadband frequency, including: a piezoelectric beam which is extended along a horizontal direction; a fixing member which fixes opposite ends of the piezoelectric beam; and a mobile mass which the piezoelectric beam passes through, and which is capable of self-movement along the piezoelectric beam through a through-hole which has a free space in addition to a space which the piezoelectric beam passes through, wherein as the mobile mass moves to a position of the piezoelectric beam, generated displacement of a piezoelectric beam is increased, and as the generated displacement becomes greater than the free space, the mobile mass is fixed to a position of a piezoelectric beam at which resonance will occur.

公开(公告)号：US11245345B2

公开(公告)日：2022-02-08

申请号：US16296218

申请日：2019-03-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyun-Cheol Song ,  Chong Yun Kang ,  Jin Sang Kim ,  Ji-won Choi ,  Seung Hyub Baek ,  Seong Keun Kim ,  Sang Tae Kim ,  Youn-hwan Shin

IPC: H02N2/18 ,  H01L41/04 ,  H01L41/113 ,  H01L41/053

Abstract: Provided is a self-resonance tuning piezoelectric energy harvester. The self-resonance tuning piezoelectric energy harvester includes a piezoelectric beam which extends along a horizontal direction, a fixing element which fixes two ends of the piezoelectric beam, and a mass which is connected to the piezoelectric beam movably along the piezoelectric beam, wherein the mass includes a through-hole through which the piezoelectric beam passes, and makes the movement through the through-hole. According to the principle of continuous movement to the resonance position, the mass of the self-resonance tuning piezoelectric energy harvester induces the piezoelectric beam to generate displacement to the maximum and maximize the electricity production capacity of the piezoelectric energy harvester.