公开(公告)号：US20240356078A1

公开(公告)日：2024-10-24

申请号：US18758426

申请日：2024-06-28

申请人： Ningde Amperex Technology Limited

发明人： Kefei WANG

IPC分类号： H01M10/0567 ,  H01M4/02 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/66 ,  H01M10/0525

CPC分类号： H01M10/0567 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/664 ,  H01M4/667 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2300/0025

摘要： An electrochemical apparatus includes a positive electrode, a negative electrode, and an electrolyte, where the positive electrode includes a positive electrode current collector and a positive electrode active material layer formed on the positive electrode current collector. The positive electrode active material layer includes a positive electrode active material, where the positive electrode active material includes element tungsten. The electrolyte includes fluoroethylene carbonate. The electrochemical apparatus features improved low-temperature rate performance and high-temperature and high-pressure safety.

公开(公告)号：US20240347783A1

公开(公告)日：2024-10-17

申请号：US18631207

申请日：2024-04-10

申请人： China Petrochemical Development Corporation, Taipei (Taiwan) ,  NATIONAL CHEN KUNG UNIVERSITY

发明人： Jeng-Shiung Jan ,  Jian-Zhou Chen ,  Chih-Wei Huang ,  Wei-Ying Li ,  Chun-Chin Lee

IPC分类号： H01M10/42 ,  C07F9/659 ,  H01M10/0525 ,  H01M10/0567 ,  H01M50/383

CPC分类号： H01M10/4235 ,  C07F9/659 ,  H01M10/0525 ,  H01M10/0567 ,  H01M50/383 ,  H01M2300/0025

摘要： The present disclosure provides a phosphazene derivative, a composition for an electrochemical device and an electrochemical device containing the composition The composition includes an electrolyte, a non-aqueous solvent and an additive. The additive includes a phosphazene derivative of the formula (I), n, R1 and R2 are as defined herein:




The safety characteristics of the electrochemical device provided in the present disclosure are improved by adding the aforementioned additives to the composition in the electrochemical device.

公开(公告)号：US12119449B2

公开(公告)日：2024-10-15

申请号：US17601764

申请日：2020-04-16

申请人： LG Energy Solution, Ltd.

发明人： Jung Min Lee ,  Young Min Lim ,  Chul Haeng Lee

IPC分类号： H01M10/0567 ,  C07F7/08 ,  H01M10/0568 ,  H01M10/0569

CPC分类号： H01M10/0567 ,  C07F7/081 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0028

摘要： An additive for a non-aqueous solution of a lithium secondary battery, a non-aqueous electrolyte solution including the same, and a lithium secondary battery include the same are disclosed herein. In some embodiments, an additive is a compound represented by Formula 1. The additive may suppress dissolution of transition metal by forming a stable film on a surface of a positive electrode. A lithium secondary battery including the non-aqueous electrolyte solution having the additive has improved swelling and capacity characteristics at high voltage and during high-temperature storage because dissolution of metallic impurities causing failure in the battery is suppressed.

公开(公告)号：US12119446B2

公开(公告)日：2024-10-15

申请号：US17054053

申请日：2020-03-31

申请人： NINGDE AMPEREX TECHNOLOGY LIMITED

发明人： Mingming Guan ,  Yali Xiong ,  Jianming Zheng ,  Jianyu Liu

IPC分类号： H01M10/0566 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

CPC分类号： H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2300/0025

摘要： An electrolyte, comprising a compound of Formula I and an additive A,




R1, R2, R3, R4, R5, R6, R7 and R8 are each independently selected from: hydrogen, halo, —COOX, substituted or unsubstituted C1-8alkyl, substituted or unsubstituted C2-10alkenyl, substituted or unsubstituted C2-10alkynyl, substituted or unsubstituted C1-8alkoxy, or —Ra—S(═O)2—Rb, wherein Ra is selected from substituted or unsubstituted C1-8alkylene, Rb is selected from halo or substituted or unsubstituted C1-8alkyl, and at least one of R1, R2, R3, R4, R5, R6, R7 and R8 is —COOX. When substituted, the substituent is selected from cyano or halo; and



X is selected from Li+, Na+, K+ or Rb+. The additive A is at least one selected from fluoroethylene carbonate, LiPO2F2, or vinylene carbonate.

公开(公告)号：US20240339664A1

公开(公告)日：2024-10-10

申请号：US18738191

申请日：2024-06-10

申请人： SK On Co., Ltd.

发明人： Sung Yon Oh ,  In Haeng Cho ,  Dong Gun Lee ,  Jin Haek Yang

IPC分类号： H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569

CPC分类号： H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0025

摘要： Provided is a lithium secondary battery comprising: a cathode comprising a cathode active material, an anode comprising an anode active material, a separator interposed between the cathode and the anode, and an electrolyte for a secondary battery, wherein the cathode active material is Lix(NiaCobMnc)O2, wherein 0.90≤x≤1.10, 0.5≤a≤0.99, 0.005≤b

公开(公告)号：US20240339601A1

公开(公告)日：2024-10-10

申请号：US18294065

申请日：2023-01-11

申请人： LG Energy Solution, Ltd.

发明人： Do-Joong LEE ,  Ki-Hyun KIM

IPC分类号： H01M4/38 ,  H01M4/02 ,  H01M4/36 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

CPC分类号： H01M4/382 ,  H01M4/366 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2004/027 ,  H01M2300/0037

摘要： Disclosed is an electrochemical device capable of preventing the exhaustion of a salt and additive in an electrolyte. The electrochemical device includes: a positive electrode; a lithium metal negative electrode; a separator between the positive electrode and the negative electrode; and a non-aqueous electrolyte including tin chloride (SnCl2).

公开(公告)号：US12113173B2

公开(公告)日：2024-10-08

申请号：US18574964

申请日：2022-09-29

申请人： LG Energy Solution, Ltd.

发明人： Hyung Tae Kim ,  Chul Haeng Lee ,  Jeong Woo Oh ,  Byung Chun Park ,  Young Mi Seo ,  Sung Guk Park

IPC分类号： H01M10/0567 ,  C07D207/335 ,  H01M10/0525 ,  H01M10/0568

CPC分类号： H01M10/0567 ,  C07D207/335 ,  H01M10/0525 ,  H01M10/0568 ,  H01M2300/0037

摘要： A non-aqueous electrolyte including an additive represented by Formula 1 is described:




wherein in Formula 1, R may be any one selected from the group consisting of an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkynyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and a cycloalkenyl group having 3 to 12 carbon atoms, R1 and R2 may each independently be any one selected from the group consisting of hydrogen (H), an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkynyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and a cycloalkenyl group having 3 to 12 carbon atoms, and A may be an alkylene group having 1 to 5 carbon atoms.

公开(公告)号：US12113172B2

公开(公告)日：2024-10-08

申请号：US18260838

申请日：2022-02-07

申请人： Tayca Corporation

发明人： Keiichi Watanabe ,  Yuta Kakimoto ,  Shunsuke Mito

IPC分类号： H01M10/0567 ,  H01G11/50 ,  H01G11/60 ,  H01G11/62 ,  H01G11/64 ,  H01M4/62 ,  H01M10/0568 ,  H01M10/0569

CPC分类号： H01M10/0567 ,  H01G11/50 ,  H01G11/60 ,  H01G11/62 ,  H01G11/64 ,  H01M4/624 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0037 ,  H01M2300/0051

摘要： A pre-doping agent for a power storage device includes a lithium iron oxide represented by Formula (1), wherein in X-ray diffractometry, a half width of a diffraction peak at a diffraction angle (2θ) of 23.6°±0.5° is 0.06° to 0.17°, and an intensity ratio (I44.6/I23.6) of a diffraction peak intensity (I44.6) at a diffraction angle (2θ) of 44.6°±0.5° to a diffraction peak intensity (I23.6) at a diffraction angle (2θ) of 23.6°±0.5° is less than 8%. The pre-doping agent for a power storage device with a large irreversible capacity can be suitably used as a power storage device, which can suppress reduction in a volume energy density of a power storage device, can reduce a production cost, can prevent decomposition of an electrolytic solution.

LixFeOy  (1)



wherein x meets 3.5≤x≤7.0 and y meets 3.1≤y≤5.0.

公开(公告)号：US12113171B2

公开(公告)日：2024-10-08

申请号：US17410635

申请日：2021-08-24

申请人： DAIKIN INDUSTRIES, LTD.

发明人： Tomoya Hidaka ,  Shigeaki Yamazaki ,  Akinori Tani ,  Yoshiko Kuwajima

IPC分类号： H01M10/0567 ,  C07F7/08 ,  C07F9/09 ,  H01M10/0525

CPC分类号： H01M10/0567 ,  C07F9/09 ,  H01M10/0525 ,  H01M2300/0025

摘要： A compound represented by the following formula (1):




wherein R101 to R103, each independently, are a C1-C6 organic group, optionally contain at least one selected from the group consisting of a hetero atom and an unsaturated bond, and are optionally linear, branched, or cyclic. Also disclosed is an electrolyte solution containing the compound, an electrochemical device containing the electrolyte solution, a lithium ion secondary battery containing the electrolyte solution and a module including the electrochemical device or the lithium ion secondary battery.

公开(公告)号：US20240332619A1

公开(公告)日：2024-10-03

申请号：US18619244

申请日：2024-03-28

申请人： Ningde Amperex Technology Limited

发明人： Junhua JIAN ,  Xiang WANG ,  Hefeng GUO ,  Chao TANG

IPC分类号： H01M10/0567 ,  H01M4/02 ,  H01M4/04 ,  H01M4/38 ,  H01M10/0569

CPC分类号： H01M10/0567 ,  H01M4/0404 ,  H01M4/386 ,  H01M10/0569 ,  H01M2004/027

摘要： An electrolyte includes a non-aqueous organic solvent and an additive A, where the additive A includes a salt composed of anions and cations represented by formula (I); M1 is selected from group IIIA elements, and cations include any one of Li+, Na+, K+, Mg2+, Ca2+, and Zn2+; and based on a mass of the electrolyte, a mass percentage of the additive A is x %, with 0.01≤x≤60. The electrolyte with the additive A included and its mass percentage controlled within the range defined in this application can enhance the stability of the negative electrode interface and the positive electrode interface, reducing the high-temperature gas production of the electrolyte and thereby improving the high-temperature cycling performance and high-temperature storage performance of the secondary battery.