公开(公告)号：US20200235421A1

公开(公告)日：2020-07-23

申请号：US16443071

申请日：2019-06-17

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Molin ZHOU ,  Leimin XU ,  Jianming ZHENG ,  Jianli GAI

IPC: H01M10/0562 ,  H01M10/0525 ,  C01G17/00

Abstract: Embodiments of the present application relate to a solid electrolyte and a preparation method thereof, and an electrochemical device and an electronic device comprising the solid electrolyte. The solid electrolyte comprises a lithium-containing transition metal sulfide being represented by the chemical formula of Li2−2a+bCd1+aMcGe1−dS4, where M is selected from the group consisting of Al, Ga, In, Si, Sn and a combination thereof, wherein 0

公开(公告)号：US20230155173A1

公开(公告)日：2023-05-18

申请号：US16976938

申请日：2020-03-03

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Junfei LIU ,  Lilan ZHANG ,  Chao TANG ,  Jianming ZHENG

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/42 ,  H01M4/48 ,  H01M4/587

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M10/4235 ,  H01M4/483 ,  H01M4/587 ,  H01M2004/027

Abstract: An electrolyte including an imidazolium salt compound and a pyridine compound. The electrolyte, includes a compound of Formula I and a compound of Formula II:




where R1 is selected from halo, cyano, substituted or unsubstituted C1-C12 alkyl, substituted or unsubstituted C2-C12 alkenyl, substituted or unsubstituted C2-C12 alkynyl, substituted or unsubstituted C2-C12 alkoxy, substituted or unsubstituted C3-C12 cycloalkyl, and substituted or unsubstituted C6-C12 aryl; and R11, R12, R13, R14 and R15 are each independently selected from H, halo, cyano, substituted or unsubstituted C1-C12 alkyl, substituted or unsubstituted C2-C12 alkenyl, substituted or unsubstituted C2-C12 alkynyl, substituted or unsubstituted C2-C12 alkoxy, substituted or unsubstituted C3-C12 cycloalkyl, and substituted or unsubstituted C6-C12 aryl; when substituted, the substituent is halo or cyano. The electrolyte has high stability and can significantly improve the cycle performance and high-temperature storage performance of electrochemical devices.

公开(公告)号：US20220131196A1

公开(公告)日：2022-04-28

申请号：US17569307

申请日：2022-01-05

Applicant: Ningde Amperex Technology Limited

Inventor： Junfei LIU ,  Shuirong ZHANG ,  Chao TANG ,  Jianming ZHENG

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525

Abstract: An electrochemical device includes a positive electrode, a negative electrode, a separator located between the positive electrode and the negative electrode, and an electrolytic solution. The positive electrode includes a positive current collector and a positive active material layer disposed on the positive current collector. The positive active material layer includes a positive active material. The positive active material includes an element A. The element A is selected from at least one of Al, B, Ca, Mg, Ti, Cu, Nb, Si, Zr, Y, or W. The electrolytic solution includes at least one of 1,3-propane sultone or a derivative thereof. A mass ratio of the element A in the positive active material to 1,3-propane sultone or a derivative is 1:0.2 to 1:50.

公开(公告)号：US20210408602A1

公开(公告)日：2021-12-30

申请号：US16961826

申请日：2019-12-26

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Chao TANG ,  Jianming ZHENG

IPC: H01M10/0568 ,  H01M10/0567 ,  H01M10/0569 ,  C07C255/05 ,  C07D327/06 ,  H01M50/417 ,  H01M50/449 ,  H01M4/38 ,  H01M4/48 ,  H01M4/36

Abstract: An electrolyte, including: a compound of Formula I, and at least one of a compound of Formula II or a compound of Formula III, R1, R2, R3 and R4 are each independently selected from hydrogen, fluoro, substituted or unsubstituted C1-C10 alkyl, substituted or unsubstituted C2-C10 alkenyl, substituted or unsubstituted C2-C10 alkynyl, substituted or unsubstituted C6-C12 aryl, substituted or unsubstituted C1-C10 alkoxy, or substituted or unsubstituted C6-C12 aryloxy, wherein when substituted, the substituent is fluoro, cyano or C1-C10 alkyl; and a, d and f are each independently selected from an integer from 1 to 5, and b, c, e, g, h and i are each independently selected from an integer from 0 to 5.

公开(公告)号：US20210408594A1

公开(公告)日：2021-12-30

申请号：US16962422

申请日：2020-02-14

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Jianyu LIU ,  Jianming ZHENG ,  Qian WEN ,  Wenqiang LI

IPC: H01M10/0567 ,  H01M10/42

Abstract: An electrolyte, including a fluorine-containing phosphate ester and a carboxylate ester, wherein the fluorine-containing phosphate ester is represented by Formula 1: R1, R2 and R3 are each independently selected from hydrogen, a C1-C10 alkyl group, C1-C10 alkoxy group, C1-C10 haloalkyl group, C1-C10 haloalkoxy group, C1-C10 phosphate ester group, or C1-C10 mono- or multiple-carbonate ester group, wherein at least one of R1, R2 and R3 comprises a fluorine atom. The weight ratio of the fluorine-containing phosphate ester to the carboxylate ester is 0.001-0.5.

公开(公告)号：US20200295399A1

公开(公告)日：2020-09-17

申请号：US16458510

申请日：2019-07-01

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Molin ZHOU ,  Feng GU ,  Leimin XU ,  Jianming ZHENG

IPC: H01M10/0562 ,  C01B17/42 ,  C01B17/22

Abstract: Embodiments of the present application relate to a solid electrolyte and a preparation method thereof, and an electrochemical device and an electronic device comprising the same. The solid electrolyte of the present application includes a solid electrolyte material being represented by the chemical formula of Li1+2x−2yMyGa2+xP1−xS6, where M is selected from the group consisting of Sr, Ba, Zn, Cd and a combination thereof, 0≤x≤0.2 and 0≤y≤0.05. Embodiments of the present application provides a solid electrolyte having good stability with lithium and ionic conductivity by forming the solid electrolyte using lower cost solid electrolyte materials and optimizing the material composition and a crystal structure thereof. At the same time, this also reduces the manufacturing costs of the solid electrolyte, and improves the structural stability of the solid electrolyte.

公开(公告)号：US20240243344A1

公开(公告)日：2024-07-18

申请号：US18607737

申请日：2024-03-18

Applicant: Ningde Amperex Technology Limited

Inventor： Lilan ZHANG ,  Chao TANG ,  Jianming ZHENG

IPC: H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0025

Abstract: An electrochemical device, including a positive electrode, a negative electrode, a separator and an electrolyte. The electrolyte includes a nitrile compound, and the mass percentage of the nitrile compound in the electrolyte is A %; the negative electrode includes a current collector, wherein the current collector comprises a first region and a second region; the first region is provided with a negative electrode active substance layer; the second region does not comprise a negative electrode active substance layer; the area of the second region is B % of the surface area of the current collector; and A×B

公开(公告)号：US20230361349A1

公开(公告)日：2023-11-09

申请号：US18315595

申请日：2023-05-11

Applicant: Ningde Amperex Technology Limited

Inventor： Yali XIONG ,  Mingming GUAN ,  Rong WANG ,  Jianming ZHENG

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M50/46

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M50/46 ,  H01M2300/0051 ,  H01M2220/30

Abstract: An electrolyte includes an organic solvent, a lithium salt and additives, in particular, the additives include a fluoroethylene carbonate and a P—N bond-containing compound, the P—N bond-containing compound having a structure shown in formula I; A mass percentage of the fluoroethylene carbonate in the electrolyte is a %, a mass percentage of the P—N bond-containing compound in the electrolyte is b %, and 0.1≤a/b≤200.

公开(公告)号：US20230198096A1

公开(公告)日：2023-06-22

申请号：US16651736

申请日：2020-03-04

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Xiexue PENG ,  Jianming ZHENG ,  Chao TANG ,  Haiyang NAN

IPC: H01M50/449 ,  H01M10/0525 ,  H01M50/491 ,  H01M50/446 ,  H01M10/0567

CPC classification number: H01M50/449 ,  H01M10/0525 ,  H01M10/0567 ,  H01M50/446 ,  H01M50/491 ,  H01M2300/0025

Abstract: The present application relates to an electrochemical device comprising a separator and an electrolyte, wherein the separator comprises a first porous layer and a second porous layer; and the electrolyte comprises at least one compound containing 2 to 3 cyano groups.

公开(公告)号：US20230123288A1

公开(公告)日：2023-04-20

申请号：US16970864

申请日：2020-03-03

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Lilan ZHANG ,  Chao TANG ,  Jianming ZHENG

IPC: H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

Abstract: An electrochemical device, including a positive electrode, a negative electrode, a separator and an electrolyte. The electrolyte includes a nitrile compound, and the mass percentage of the nitrile compound in the electrolyte is A %; the negative electrode includes a current collector, wherein the current collector comprises a first region and a second region; the first region is provided with a negative electrode active substance layer; the second region does not comprise a negative electrode active substance layer; the area of the second region is B % of the surface area of the current collector; and A×B