公开(公告)号：US11599694B2

公开(公告)日：2023-03-07

申请号：US16874690

申请日：2020-05-15

Applicant: Sichuan University

Inventor： Qingyuan Wang ,  Hong Zhang ,  Yongjie Liu ,  Chong Wang ,  Lang Li ,  Chao He

IPC: G06F30/23 ,  G01M5/00 ,  G06F111/10

Abstract: A method for assessing fatigue damage and a fatigue life based on a crystal plastic welding process model. According to the new method, consideration is given to the effects of the crystal slip system and the polycrystal plastic strain on the welding process performance of the material. A welding process damage and fatigue life assessment model is established on the mesoscopic scale. The effect of microscopic characterizations of materials on the welding process performance, as well as on the fatigue damage and life of welded joints, can be studied from the mesoscopic point of view. The relationship between the welding process and the evolution of the material performance can be determined by the macro-mesoscopic coupling calculation model to further determine the effect and degree of welding processes on the fatigue damage and life of materials.

公开(公告)号：US09734955B2

公开(公告)日：2017-08-15

申请号：US14425312

申请日：2013-01-14

Applicant: SICHUAN UNIVERSITY

Inventor： Jiliang Zhu ,  Ping Sun ,  Zhongxing Wang ,  Zifan Zeng ,  Qingyuan Wang ,  Juncheng Zhu

IPC: H01G11/44 ,  H01G11/84 ,  H01G11/30 ,  H01G11/86 ,  H01G11/56 ,  H01G11/68

CPC classification number: H01G11/30 ,  H01G11/34 ,  H01G11/44 ,  H01G11/56 ,  H01G11/68 ,  H01G11/86 ,  Y02E60/13

Abstract: The disclosure discloses electrode material, preparation methods thereof and supercapacitors based thereof. Raw material for preparing the electrode material include PVDF and an additive which can be reacted with the PVDF to generate conductive active substance, the amount of the PVDF is 50 to 99 mass percentage, and the amount of the additive is 1 to 50 mass percentage. A PVDF-based composite film can be prepared from the raw materials; and activating treatment is performed on the film by virtue of a physico-chemical process, so that PVDF can generate a conductive active substance, the contact resistance of the PVDF and the active substance is reduced, and the conductive active substance is distributed in the PVDF-based composite film more uniformly. Button and wound supercapacitor and flexible capacitor, which are prepared from the electrode material, are high in power density and energy density, long in cycle life.

公开(公告)号：US20150235775A1

公开(公告)日：2015-08-20

申请号：US14425312

申请日：2013-01-14

Applicant: SICHUAN UNIVERSITY

Inventor： Jiliang Zhu ,  Ping Sun ,  Zhongxing Wang ,  Zifan Zeng ,  Qingyuan Wang ,  Juncheng Zhu

IPC: H01G11/30 ,  H01G11/56 ,  H01G11/68 ,  H01G11/86

CPC classification number: H01G11/30 ,  H01G11/34 ,  H01G11/44 ,  H01G11/56 ,  H01G11/68 ,  H01G11/86 ,  Y02E60/13

Abstract: The disclosure discloses electrode material, preparation methods thereof and supercapacitors based thereof. Raw material for preparing the electrode material include PVDF and an additive which can be reacted with the PVDF to generate conductive active substance, the amount of the PVDF is 50 to 99 mass percentage, and the amount of the additive is 1 to 50 mass percentage. A PVDF-based composite film can be prepared from the raw materials; and activating treatment is performed on the film by virtue of a physico-chemical process, so that PVDF can generate a conductive active substance, the contact resistance of the PVDF and the active substance is reduced, and the conductive active substance is distributed in the PVDF-based composite film more uniformly. Button and wound supercapacitor and flexible capacitor, which are prepared from the electrode material, are high in power density and energy density, long in cycle life.

Abstract translation: 本发明公开了电极材料，其制备方法和基于其的超级电容器。 用于制备电极材料的原料包括PVDF和可与PVDF反应以产生导电活性物质的添加剂，PVDF的量为50至99质量％，并且添加剂的量为1至50质量％。 可以从原料制备PVDF基复合膜; 并通过物理化学处理对膜进行活化处理，使得PVDF能够产生导电活性物质，降低了PVDF和活性物质的接触电阻，导电活性物质分布在PVDF中 的复合膜更均匀。 由电极材料制成的按钮和绕线超级电容器和柔性电容器的功率密度和能量密度高，循环寿命长。