公开(公告)号：US20240356082A1

公开(公告)日：2024-10-24

申请号：US18506087

申请日：2023-11-09

Applicant: AESC Dynamics Technology (Jiangsu) Ltd. ,  AESC Intelligent Innovation Dynamics Technology (Shanghai) Ltd. ,  AESC Dynamics Technology (Hubei) Ltd. ,  AESC Dynamics Technology (Ordos) Ltd.

Inventor： Le Yu ,  Lei Shi

IPC: H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568

CPC classification number: H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M2300/0037 ,  H01M2300/004 ,  H01M2300/0042

Abstract: The disclosure provides an electrolyte and a lithium-ion battery. The electrolyte includes a solvent, a lithium salt and an additive; the solvent includes cyclic carbonate and ethyl acetate; the cyclic carbonate includes ethylene carbonate; and the lithium salt includes lithium bis(fluorosulfonyl) imide. The mass percentage of the cyclic carbonate accounts for 5% to 20% of the total amount of the solvent; the mass percentage of the ethyl acetate accounts for 20% to 95% of the total amount of the solvent; the mass percentage of the lithium bis(fluorosulfonyl) imide accounts for 8% to 20% of the total amount of the electrolyte. The electrolyte provided by the present disclosure has a low melting point, a high ionic conductivity, a low battery DCR, and has an improved performance at a low temperature when used in lithium-ion batteries.

公开(公告)号：US12119453B2

公开(公告)日：2024-10-15

申请号：US17196944

申请日：2021-03-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Chengdu Liang ,  Peipei Chen ,  Chenghua Fu ,  Junmin Feng

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

CPC classification number: H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2220/20 ,  H01M2300/0037

Abstract: This application provides a nonaqueous electrolyte, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The nonaqueous solvent includes a nonaqueous solvent and a lithium slat. The nonaqueous solvent includes a carbonate solvent and a high oxidation potential solvent, and the high oxidation potential solvent is selected from one or more of compounds represented by formula I and formula II. Based on a total weight of the nonaqueous solvent, a weight percentage of the high oxidation potential solvent is 10% to 60%. This application can not only improve electrochemical performance of the lithium-ion battery under high temperature and high voltage and improve safety performance such as overcharge safety and hot box safety of the lithium-ion battery, but also ensure that the lithium-ion battery has some kinetic performance.

公开(公告)号：US20240339658A1

公开(公告)日：2024-10-10

申请号：US18398865

申请日：2023-12-28

Applicant: LG Energy Solution, Ltd.

Inventor： Ga Young Baek ,  Chul Haeng Lee ,  Kyung Mi Lee ,  Jung Min Lee ,  Su Hyeon Ji ,  Chul Eun Yeom ,  Yoon Gyo Cho

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

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0037

Abstract: A non-aqueous electrolyte includes an organic solvent, a compound represented by Formula 1 as a first additive, and a compound represented by Formula 2 or Formula 3 as a second additive:






in the formulas, R and R1 to R6 are as defined in the specification.

公开(公告)号：US20240332628A1

公开(公告)日：2024-10-03

申请号：US18622093

申请日：2024-03-29

Applicant: Enevate Corporation

Inventor： Liwen Ji ,  Benjamin Yong Park ,  Younes Ansari ,  Hong Zhao

IPC: H01M10/0569 ,  C07C261/02 ,  H01M4/02 ,  H01M4/38 ,  H01M10/0567 ,  H01M10/0568

CPC classification number: H01M10/0569 ,  C07C261/02 ,  H01M4/386 ,  H01M10/0567 ,  H01M10/0568 ,  H01M2004/027 ,  H01M2300/0037

Abstract: Electrolytes and electrolyte additives for energy storage devices comprising cyanate based compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte comprising at least two electrolyte co-solvents, wherein at least one electrolyte co-solvent comprises a cyanate based compound.

公开(公告)号：US12107227B2

公开(公告)日：2024-10-01

申请号：US17196797

申请日：2021-03-09

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Chenghua Fu ,  Peipei Chen ,  Junmin Feng

IPC: H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/42 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525

CPC classification number: H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/4235 ,  H01M2004/028 ,  H01M4/505 ,  H01M4/525 ,  H01M2300/0037 ,  H01M2300/004

Abstract: This application provides a nonaqueous electrolyte, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The nonaqueous electrolyte includes a nonaqueous solvent, a lithium salt, and an additive. The nonaqueous solvent includes a carbonate solvent and a high oxidation potential solvent, and the additive is a fluorinated cyclic carbonate. The carbonate solvent is a linear carbonate, or a mixture of linear carbonate and cyclic carbonate, the high oxidation potential solvent is selected from one or more of compounds represented by formula I and formula II, and the fluorinated cyclic carbonate is selected from compounds represented by formula III. This application can not only improve electrochemical performance of the lithium-ion battery under high temperature and high voltage and improve safety performance such as overcharge safety and hot box safety of the lithium-ion battery, but also ensure that the lithium-ion battery has some kinetic performance.

公开(公告)号：US20240322142A1

公开(公告)日：2024-09-26

申请号：US18736563

申请日：2024-06-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Limei Zhang ,  Peipei Chen ,  Yao Jiang ,  Jiao Liu

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/42

CPC classification number: H01M4/366 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/4235 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2300/0037

Abstract: Provided are a secondary battery, a battery module, a battery pack and an electrical apparatus. The secondary battery includes a positive electrode plate and a non-aqueous electrolyte solution. A positive electrode active material includes an inner core and a shell cladding the inner core. The inner core includes Li1+xMn1−yAyP1−zRzO4. The shell includes a first cladding layer cladding the inner core and a second cladding layer cladding the first cladding layer. The first cladding layer includes pyrophosphate MP2O7 and phosphate XPO4. The second cladding layer includes carbon. The non-aqueous electrolyte solution includes a first additive. The first additive includes one or more compounds in a group consisting of a compound shown in Formula 1, a compound shown in Formula 2 and a compound shown in Formula 3. The rate performance, cycling performance and high temperature stability of a lithium manganese phosphate secondary battery are increased.

公开(公告)号：US12100812B2

公开(公告)日：2024-09-24

申请号：US17073176

申请日：2020-10-16

Applicant: Tesla Motors Canada ULC

Inventor： Jeffery R. Dahn ,  Jing Li ,  Stephen Laurence Glazier

IPC: H01M10/0569 ,  H01M4/50 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568

CPC classification number: H01M10/0569 ,  H01M4/502 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M2220/20 ,  H01M2300/0037

Abstract: Improved battery systems have been developed for lithium-ion based batteries. The improved battery systems consist of two-additive mixtures in an electrolyte solvent that is a carbonate solvent, an organic solvent, a non-aqueous solvent, and/or methyl acetate. The positive electrode of the improved battery systems may be formed from lithium nickel manganese cobalt compounds, and the negative electrode of the improved battery system may be formed from natural or artificial graphite.

公开(公告)号：US12080851B1

公开(公告)日：2024-09-03

申请号：US18597828

申请日：2024-03-06

Applicant: SOUTH 8 TECHNOLOGIES, INC.

Inventor： Cyrus S. Rustomji ,  Jungwoo Lee ,  Frederick Krause ,  Jeremy Intrator

IPC: H01M10/00 ,  H01M10/0569

CPC classification number: H01M10/0569 ,  H01M2300/0037

Abstract: The present invention discloses ionically conducting electrolytes that include a liquefied gas solvent displaying low global warming potential (GWP) and low flammability while also generating favorable solid-electrolyte interphases in an electrochemical device to maintain high performance and cycle life. Ionically conducting electrolytes include a multi-component solvent mixture with a low-GWP solvent and non-low GWP solvent. The overall GWP of the multi-component solvent mixture is at least 50% less than the GWP of the non-low GWP solvent alone.

公开(公告)号：US12074288B2

公开(公告)日：2024-08-27

申请号：US17288835

申请日：2019-11-07

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Shuhei Sakamoto ,  Yoko Ono ,  Hironobu Minowa ,  Takeshi Komatsu

IPC: H01M10/05 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0565 ,  H01M10/0567

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0565 ,  H01M2300/0037 ,  H01M2300/0068 ,  H01M2300/0082 ,  H01M2300/0085

Abstract: A lithium secondary battery is provided with a higher capacity and a longer life. The lithium secondary battery includes: a cathode containing a material that is capable of inserting and desorbing lithium ions; a lithium ion conductive electrolyte; and an anode containing a material that is capable of occluding and releasing lithium metal or lithium ions, wherein the electrolyte contains a metal 6,6′-bis(benzoylamino)-2,2′-bipyridine (babp) complex, which is a metal complex.

公开(公告)号：US12074286B2

公开(公告)日：2024-08-27

申请号：US17041341

申请日：2019-01-22

Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.

Inventor： Yuki Kono ,  Yasuyuki Takai ,  Koji Fujita

IPC: H01M10/0567 ,  H01G11/06 ,  H01G11/64 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/42

CPC classification number: H01M10/0567 ,  H01G11/06 ,  H01G11/64 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/4235 ,  H01M2300/0037

Abstract: Disclosed is an additive for nonaqueous electrolyte solutions, including a compound represented by Formula (1a) or (1b).

In Formulae (1a) and (1b), Z represents a monovalent group represented by Formula (2a), (2b), or (2c).