Patents by Inventor Xionggui LIN
Xionggui LIN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240178368Abstract: The present application provides a secondary battery, including a positive electrode, a negative electrode with a negative electrode material layer, and a non-aqueous electrolyte, the negative electrode material layer comprises a negative electrode active material, and the negative electrode active material comprises a silicon-based material; the non-aqueous electrolyte comprises a solvent, an electrolyte salt and an additive, the additives comprises a compound represented by structural formula 1; wherein n is 0 or 1, A is selected from C or O, X is selected from R1 and R2 are each independently selected from H, R1 and R2 are not selected from H at the same time, and X, R1 and R2 comprise at least one sulfur atom; the secondary battery meets the following requirements: 0 . 2 ? 1 ? m * n * r S ? 40 ; and 40%?m?90%, 0.05%?n?2%, 1.2 g/cm3?r?1.8 g/cm3, 5%?S?30%.Type: ApplicationFiled: November 16, 2022Publication date: May 30, 2024Inventors: Yonghong Deng, Yunxian Qian, Shiguang Hu, Guiyan Sun, Xiaoxia Xiang, Xionggui Lin, Chaowei Cao
-
Publication number: 20240136577Abstract: In order to solve the problem that the existing manganese-based positive electrode material battery has insufficient high-temperature cycle and high-temperature storage performances due to the dissolution of manganese ions, the present application provides a secondary battery, comprising a positive electrode, a negative electrode and a non-aqueous electrolyte, the positive electrode comprises a positive electrode material layer containing a positive electrode active material, the positive electrode active material comprises a manganese-based material, and the non-aqueous electrolyte comprises a solvent, an electrolyte salt and an additive, and the additive comprises a compound represented by structural formula 1: the secondary battery meets the following requirements: 0.05?100×W×u/(q×s)?5; and 2.0 g/Ah?W?4.5 g/Ah, 0.05%?u?3.5%, 5%?q?65%, 10 mg/cm2?s?30 mg/cm2.Type: ApplicationFiled: November 16, 2022Publication date: April 25, 2024Inventors: Yonghong Deng, Yunxian Qian, Shiguang Hu, Xionggui Lin, Hongmei Li
-
Publication number: 20240097187Abstract: The existing positive electrode material that is doped or coated with compound has the problem OF ion dissolution and battery performance deterioration at high temperature. To solve it, the invention provides a lithium-ion battery, comprising a positive electrode, a negative electrode and a non-aqueous electrolyte, wherein the positive electrode comprises a positive electrode material layer, the positive electrode material layer comprises a positive electrode active material, and the positive electrode active material comprises LiMO2, where M is selected from one or more of Ni, Co and Mn, and the positive electrode active material is doped with a compound containing metal element A and/or coated with a compound containing metal element A, the non-aqueous electrolyte comprises a solvent, an electrolyte salt and a compound represented by Structural formula 1. The lithium-ion battery provided by the invention could effectively improve the overall stability of the material.Type: ApplicationFiled: December 16, 2021Publication date: March 21, 2024Inventors: Yunxian Qian, Shiguang Hu, Guiyan Sun, Xionggui Lin, Yonghong Deng
-
Patent number: 11881555Abstract: In order to solve the problems of insufficient high-temperature storage performance and high-temperature cycle performance of the existing lithium ion battery, the present application provides a non-aqueous electrolyte for lithium ion battery, comprising a bicyclic sulfate compound and a compound A represented by structural formula 1. In structural formula 1, R3, R4, R5, R6, R7 and R8 are each independently selected from hydrogen, fluorine atom or a group containing 1˜5 carbon atoms. Meanwhile, the application also discloses a lithium ion battery comprising the non-aqueous electrolyte for lithium ion battery. The non-aqueous electrolyte for lithium ion battery provided by the application is beneficial to improving high-temperature storage and high-temperature cycle performance of battery.Type: GrantFiled: June 27, 2018Date of Patent: January 23, 2024Assignee: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.Inventors: Shiguang Hu, Qiao Shi, Zhaohui Deng, Xionggui Lin
-
Patent number: 11757132Abstract: A non-aqueous electrolyte for a lithium-ion battery and a lithium-ion battery. The non-aqueous electrolyte includes an unsaturated phosphate compound and a cyclic unsaturated carboxylic anhydride compound. The unsaturated phosphate compound has a structure represented by structural formula (4). R13, R11 and R12 are each independently selected from a hydrocarbon group having 1 to 5 carbon atoms, and at least one of R13, R11 and R12 is an unsaturated hydrocarbon group having a double bond or a triple bond. The unsaturated cyclic carboxylic anhydride compound having a structure represented by Structural Formula 5. R14 is selected from the group consisting of an alkenylene group having 2 to 4 carbon atoms or a fluorinated alkenylene group having 2 to 4 carbon atoms. By means of the synergistic effect of two compounds, the non-aqueous electrolyte has excellent high-temperature cycling performance and storage performance, and also has lower impedance and good low-temperature performance.Type: GrantFiled: May 2, 2022Date of Patent: September 12, 2023Assignee: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.Inventors: Qiao Shi, Muchong Lin, Shiguang Hu, Xionggui Lin, Jiaojiao Yun, Chang'an Zeng
-
Publication number: 20220263133Abstract: A non-aqueous electrolyte for a lithium-ion battery and a lithium-ion battery. The non-aqueous electrolyte includes an unsaturated phosphate compound and a cyclic unsaturated carboxylic anhydride compound. The unsaturated phosphate compound has a structure represented by structural formula (4). R13, R11 and R12 are each independently selected from a hydrocarbon group having 1 to 5 carbon atoms, and at least one of R13, R11 and R12 is an unsaturated hydrocarbon group having a double bond or a triple bond. The unsaturated cyclic carboxylic anhydride compound having a structure represented by Structural Formula 5. R14 is selected from the group consisting of an alkenylene group having 2 to 4 carbon atoms or a fluorinated alkenylene group having 2 to 4 carbon atoms. By means of the synergistic effect of two compounds, the non-aqueous electrolyte has excellent high-temperature cycling performance and storage performance, and also has lower impedance and good low-temperature performance.Type: ApplicationFiled: May 2, 2022Publication date: August 18, 2022Inventors: Qiao Shi, Muchong Lin, Shiguang Hu, Xionggui Lin, Jiaojiao Yun, Chang'an Zeng
-
Patent number: 11362370Abstract: A non-aqueous electrolyte for a lithium-ion battery and a lithium-ion battery. The non-aqueous electrolyte comprises unsaturated phosphate compounds and unsaturated cyclic carboxylic acid anhydride compounds. The unsaturated phosphate compounds have the structure illustrated in structural formula 4; structural formula 4: R13, R11, and R12 are independently selected from hydrocarbon groups having 1-5 carbon atoms respectively, and at least one of R13, R11, and R12 is an unsaturated hydrocarbon group containing double bonds or triple bonds; the unsaturated cyclic carboxylic acid anhydride compounds have the structure illustrated in structural formula 5; structural formula 5: R14 is independently selected from vinylidene having 2-4 carbon atoms or fluoro-substituted vinylidene. By means of the synergistic effect of two compounds, the non-aqueous electrolyte has excellent high-temperature cycling performance and storage performance, and also has lower impedance and good low-temperature performance.Type: GrantFiled: December 30, 2016Date of Patent: June 14, 2022Assignee: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.Inventors: Qiao Shi, Muchong Lin, Shiguang Hu, Xionggui Lin, Jiaojiao Yun, Chang'an Zeng
-
Patent number: 10923762Abstract: A lithium-ion battery, comprising a cathode, an anode, and a non-aqueous electrolyte; the cathode comprises a cathode active material and a metal oxide and/or metal fluoride coating which covers the surface of the cathode active material; the cathode active material is at least one of materials illustrated in general formula I or II: formula I: LixNiyM1-yO2, wherein 0.5?x?1.2, 0.5?y?1, and M is selected from at least one of Co, Mn, Al, Ti, Fe, Zn, Zr, Cr, and formula II: LikCozL1-zO2, wherein 0.5?k?1.2, 0.5<z?1, and L is selected from at least one of Ni, Mn, Al, Ti, Fe, Zn, Zr, Cr. According to the lithium-ion battery, the charge cut-off voltage of the lithium-ion battery reaches 4.3 V or more by means of a synergistic effect of the unsaturated phosphate compounds and the coating at the surface of the cathode active material.Type: GrantFiled: December 29, 2016Date of Patent: February 16, 2021Assignee: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.Inventors: Qiao Shi, Shiguang Hu, Xionggui Lin, Jiaojiao Yun
-
Publication number: 20200313237Abstract: In order to solve the problems of insufficient high-temperature storage performance and high-temperature cycle performance of the existing lithium ion battery, the present application provides a non-aqueous electrolyte for lithium ion battery, comprising a bicyclic sulfate compound and a compound A represented by structural formula 1. In structural formula 1, R3, R4, R5, R6, R7 and R8 are each independently selected from hydrogen, fluorine atom or a group containing 1˜5 carbon atoms. Meanwhile, the application also discloses a lithium ion battery comprising the non-aqueous electrolyte for lithium ion battery. The non-aqueous electrolyte for lithium ion battery provided by the application is beneficial to improving high-temperature storage and high-temperature cycle performance of battery.Type: ApplicationFiled: June 27, 2018Publication date: October 1, 2020Inventors: Shiguang Hu, Qiao Shi, Zhaohui Deng, Xionggui Lin
-
Patent number: 10644352Abstract: A lithium-ion battery non-aqueous electrolyte solution, and a lithium-ion battery using the electrolyte solution. The electrolyte solution comprises one, two, or more of a compound as represented by structural formula I. R1, R2, R3, R4, R5, and R6 are independently selected from hydrogen, halogen atom, or a group comprising 1-5 carbon atoms. Presence of the compound as represented by structural formula I provides excellent performance at a high temperature and at a low temperature to the non-aqueous lithium-ion battery electrolyte solution.Type: GrantFiled: December 29, 2016Date of Patent: May 5, 2020Assignee: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.Inventors: Zhongtian Zheng, Qiao Shi, Ling Zhong, Shiguang Hu, Changchun Chen, Xionggui Lin
-
Publication number: 20190305365Abstract: A lithium-ion battery, comprising a cathode, an anode, and a non-aqueous electrolyte; the cathode comprises a cathode active material and a metal oxide and/or metal fluoride coating which covers the surface of the cathode active material; the cathode active material is at least one of materials illustrated in general formula I or II: formula I: LixNiyM1-yO2, wherein 0.5?x?1.2, 0.5?y?1, and M is selected from at least one of Co, Mn, Al, Ti, Fe, Zn, Zr, Cr, and formula II: LikCozL1-zO2, wherein 0.5?k?1.2, 0.5<z?1, and L is selected from at least one of Ni, Mn, Al, Ti, Fe, Zn, Zr, Cr. According to the lithium-ion battery, the charge cut-off voltage of the lithium-ion battery reaches 4.3 V or more by means of a synergistic effect of the unsaturated phosphate compounds and the coating at the surface of the cathode active material.Type: ApplicationFiled: December 29, 2016Publication date: October 3, 2019Inventors: Qiao Shi, Shiguang Hu, Xionggui Lin, Jiaojiao Yun
-
Publication number: 20190237804Abstract: A non-aqueous electrolyte for a lithium-ion battery and a lithium-ion battery. The non-aqueous electrolyte comprises unsaturated phosphate compounds and unsaturated cyclic carboxylic acid anhydride compounds. The unsaturated phosphate compounds have the structure illustrated in structural formula 4; structural formula 4: R13, R11, and R12 are independently selected from hydrocarbon groups having 1-5 carbon atoms respectively, and at least one of R13, R11, and R12 is an unsaturated hydrocarbon group containing double bonds or triple bonds; the unsaturated cyclic carboxylic acid anhydride compounds have the structure illustrated in structural formula 5; structural formula 5: R14 is independently selected from vinylidene having 2-4 carbon atoms or fluoro-substituted vinylidene. By means of the synergistic effect of two compounds, the non-aqueous electrolyte has excellent high-temperature cycling performance and storage performance, and also has lower impedance and good low-temperature performance.Type: ApplicationFiled: December 30, 2016Publication date: August 1, 2019Inventors: Qiao Shi, Muchong Lin, Shiguang Hu, Xionggui Lin, Jiaojiao Yun, Chang'an Zeng
-
Publication number: 20190081354Abstract: A lithium-ion battery non-aqueous electrolyte solution, and a lithium-ion battery using the electrolyte solution. The electrolyte solution comprises one, two, or more of a compound as represented by structural formula I. R1, R2, R3, R4, R5, and R6 are independently selected from hydrogen, halogen atom, or a group comprising 1-5 carbon atoms. Presence of the compound as represented by structural formula I provides excellent performance at a high temperature and at a low temperature to the non-aqueous lithium-ion battery electrolyte solution.Type: ApplicationFiled: December 29, 2016Publication date: March 14, 2019Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.Inventors: Zhongtian ZHENG, Qiao SHI, Ling ZHONG, Shiguang HU, Changchun CHEN, Xionggui LIN