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11.发明授权公开(公告)号：US09444030B2
公开(公告)日：2016-09-13
申请号：US13891291
申请日：2013-05-10
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xudong Wang , Yanchao Mao , Ping Zhao
IPC: H01L41/113 , H01L41/22 , H01L41/18 , H01L41/45 , H01L41/193
CPC classification number: H01L41/113 , H01L41/193 , H01L41/45
Abstract: Piezoelectric materials based on nanoporous polymer foams are provided. Also provided are nanogenerators incorporating the piezoelectric materials, piezoelectric energy harvesters incorporating the nanogenerators and methods of making and using the same. The piezoelectric materials comprise a unitary nanoporous matrix composed of a piezoelectrically active organic polymer, in which the pores are interconnected and have nanoscale diameters.
Abstract translation: 提供了基于纳米多孔聚合物泡沫的压电材料。 还提供了纳入压电材料的纳米发生器，纳入纳米发生器的压电能量收集器及其制造和使用方法。 压电材料包括由压电活性有机聚合物组成的单一纳米多孔基质，其中孔相互连接并具有纳米尺寸的直径。
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公开(公告)号：US20220231218A1
公开(公告)日：2022-07-21
申请号：US17154711
申请日：2021-01-21
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xudong Wang , Fan Yang , Jun Li
Abstract: A flexible piezoelectric thin film, and method of manufacture, has a polyvinyl alcohol (PVA)-glycine-PVA sandwich heterostructure. The thin film is manufactured by evaporating the solvent from a glycine-PVA mixture solution. The film automatically assembles into the PVA-glycine-PVA sandwich heterostructure as it is salted out. Strong hydrogen bonding between the oxygen atoms in glycine and hydroxyl groups on PVA chains are responsible for the nucleation and growth of the piezoelectric γ-glycine and alignment of the domain orientation.
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公开(公告)号：US20210328130A1
公开(公告)日：2021-10-21
申请号：US16851400
申请日：2020-04-17
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xudong Wang , Jun Li
IPC: H01L41/277 , G01L9/08 , H01L41/37 , H01L41/333 , B33Y80/00
Abstract: A piezoelectric artificial artery can be 3D printed to provide the real-time precise sensing of blood pressure and vessel motion patterns enabling early detection of partial occlusions. An electric-field assisted 3D printing method allows for rapid printing and simultaneously poled complex ferroelectric structures with high fidelity and good piezoelectric performance. The print material consists of ferroelectric potassium sodium niobite (KNN) particles embedded within a ferroelectric polyvinylidene fluoride (PVDF) polymer matrix.
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公开(公告)号：US11027140B2
公开(公告)日：2021-06-08
申请号：US16009553
申请日：2018-06-15
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xudong Wang , Weibo Cai , Guang Yao , Lei Kang
Abstract: The invention provides an implantable vagal nerve stimulator having a “passive” generating power source that harvests the stomach's movements to transform kinetic energy to electrical charge without the need for a battery. In this regard, the invention is self-powering and is automatically timed to stomach peristalsis. While sporadic stimulation to the vagal nerve would seem too infrequent to cause weight loss effects, electrical stimulation delivered at the optimal time (e.g., during food consumption) has been found to optimize the effects of vagal nerve stimulation, giving the user's brain a “full stomach” signal before the user over-consumes food.
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公开(公告)号：US20200316366A1
公开(公告)日：2020-10-08
申请号：US16376178
申请日：2019-04-05
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xudong Wang , Yin Long , Weibo Cai , Hao Wei
Abstract: A wearable medical bandage is provided having an energy harvesting generator that harvests mechanical energy from the user's natural body and muscle motions to produce electrical energy. The electrical energy induces an electric potential across the wound opening producing accelerated skin wound recovery under the voltage fluctuations produced by the power generator.
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Patent Agency Ranking
公开(公告)号：US10277147B2
公开(公告)日：2019-04-30
申请号：US15178285
申请日：2016-06-09
Applicant: Wisconsin Alumni Research Foundation , The United States of America as Represented by the Secretary of Agriculture
Inventor： Xudong Wang , Zhiyong Cai , Chunhua Yao , Alberto Hernandez , Yanhao Yu
Abstract: Triboelectric nanogenerators that operate in a vertical contact separation mode and methods for fabricating the triboelectric generators are provided. Also provided are methods for using the triboelectric nanogenerators to harvest mechanical energy and convert it into electric energy. In the TENGs, one or both of the triboelectrically active layers comprises a cellulose that has been chemically treated to alter its electron affinity.
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公开(公告)号：US20140134793A1
公开(公告)日：2014-05-15
申请号：US13892446
申请日：2013-05-13
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xudong Wang , Zhenqiang Ma , Fei Wang , Jung-Hun Seo
IPC: H01L21/02
CPC classification number: H01L21/02628 , C30B7/14 , C30B29/16 , H01L21/02554 , H01L21/0259 , H01L29/7869 , H01L33/28
Abstract: The present invention provides continuous, free-standing metal oxide films and methods for making said films. The methods are able to produce large-area, flexible, thin films having one or more continuous, single-crystalline metal oxide domains. The methods include the steps of forming a surfactant monolayer at the surface of an aqueous solution, wherein the headgroups of the surfactant molecules provide a metal oxide film growth template. When metal ions in the aqueous solution are exposed to the metal oxide film growth template in the presence of hydroxide ions under suitable conditions, a continuous, free-standing metal oxide film can be grown from the film growth template downward into the aqueous solution.
Abstract translation: 本发明提供连续的，独立的金属氧化物膜和制备所述膜的方法。 该方法能够生产具有一个或多个连续的单晶金属氧化物畴的大面积，柔性的薄膜。 所述方法包括在水溶液表面形成表面活性剂单层的步骤，其中表面活性剂分子的头基提供金属氧化物膜生长模板。 当水溶液中的金属离子在合适的条件下在氢氧根离子存在下暴露于金属氧化物膜生长模板时，可以将连续的自立式金属氧化物膜从膜生长模板向下生长到水溶液中。
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公开(公告)号：US20250132399A1
公开(公告)日：2025-04-24
申请号：US18381855
申请日：2023-10-19
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xudong Wang , Yutao Dong
IPC: H01M10/42 , H01M50/426 , H01M50/434 , H01M50/451 , H01M50/489
Abstract: A mesoporous piezoelectric or ferroelectric (FE) Al2O3/P(VDF-TrFE) membrane can actively suppress anode dendrites formation when used as a separator in rechargeable aqueous Zn-ion batteries. When the positive polarization side of the FE separator faces the metal anode during charging, the FE separator can reverse the local energetics for Zn2+ reduction at the protrusion area and deplete incoming Zn2+ ions to the flat region. As a result, the symmetric Zn—Zn cell with this P+ separator can achieve a substantially higher cycling stability.
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公开(公告)号：US11791519B2
公开(公告)日：2023-10-17
申请号：US17501490
申请日：2021-10-14
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xudong Wang , Yutao Dong
IPC: H01M50/469 , H01M50/107 , H01M4/38 , H01M4/62 , H01M6/02 , H01M6/34 , H01M4/02
CPC classification number: H01M50/469 , H01M4/38 , H01M4/622 , H01M6/02 , H01M6/34 , H01M50/107 , H01M2004/022
Abstract: A transient or biodegradable battery is provided having a filament structure that limits the speed of reaction allowing for a longer duration of battery power with a controlled current limit. In one embodiment, the filament may be constructed of zinc microparticles or nanoparticles having a thin outer insulation whereby a chemical reaction at the center core results in the progressive disintegration of the insulation revealing more core material. In one embodiment, microparticles or nanoparticles are coated with outer layers of chitosan and Al2O3 nanofilms, respectively, with designable discharge current and battery lifespan by controlling the exposed cross-sectional area of the zinc microparticle center core and the length of the filament, respectively. This novel structure of biodegradable battery provides improved control of battery life and power output, providing a promising solution to power transient medical implants.
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20.发明公开公开(公告)号：US20230233869A1
公开(公告)日：2023-07-27
申请号：US17580890
申请日：2022-01-21
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xudong Wang , Yan Shao
CPC classification number: A61N1/3758 , A61N1/36014 , C08L23/22 , C08L2203/16 , C08L2203/206
Abstract: An encapsulation for an implantable medical device is provided defined by a blend of high molecular weight polyisobutylene and low molecular weight polyisobutylene solution to provide desirable stretchability and elastic properties without sacrificing water resistance properties of the encapsulation. The encapsulation material is flexible thus allowing the medical device to possess tissue matching flexibility and retain long-term normal function free from liquid infiltration.
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