公开(公告)号：US11018337B2

公开(公告)日：2021-05-25

申请号：US16710997

申请日：2019-12-11

申请人： Soichiro Kawakami

发明人： Soichiro Kawakami

IPC分类号： H01M4/36 ,  H01M4/134 ,  H01M10/0567 ,  H01M4/70 ,  H01M4/66 ,  H01M4/04 ,  H01M4/38 ,  H01M4/485 ,  H01M4/62 ,  H01M10/0525 ,  H01G11/50 ,  H01G11/70 ,  H01G11/86 ,  H01G11/06 ,  H01G11/64 ,  H01G11/38 ,  H01G11/40 ,  H01G11/46 ,  H01G11/60 ,  H01G11/62 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/02

摘要： Provided is an anode active material for energy storage devices capable of electrochemically inserting and extracting lithium ions and production method thereof, an electrode structure including the active material and flake graphite, and an energy storage device using the electrode structure as an anode. The anode active material includes secondary particles that are aggregates of 10-300 nm primary particles containing silicon as a main component. The primary particles each include, as a surface layer, a composite metal oxide layer containing at least one or more metal elements selected from at least Al, Zr, Mg, Ca, and La and Li.

公开(公告)号：US10978739B2

公开(公告)日：2021-04-13

申请号：US16213955

申请日：2018-12-07

申请人： Enevate Corporation

发明人： Liwen Ji ,  Benjamin Yong Park ,  Ian Browne ,  Tracy Ho ,  Sung Won Choi

IPC分类号： H01M10/0567 ,  H01M4/38 ,  H01G11/32 ,  H01G11/30 ,  H01G11/58 ,  H01M4/62 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/134 ,  H01G11/64 ,  H01M4/587

摘要： Electrolytes and electrolyte additives for energy storage devices comprising a carboxylic ether, a carboxylic acid based salt, or an acrylate electrolyte 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, and at least one electrolyte additive selected from carboxylic ethers, carboxylic acid based salts, and acrylates.

公开(公告)号：US10897063B2

公开(公告)日：2021-01-19

申请号：US16373032

申请日：2019-04-02

申请人： Contemporary Amperex Technology Co., Limited

发明人： Yao Jiang ,  Chunhua Hu ,  Tiancheng Yi ,  Lu Miao ,  Chengdu Liang

IPC分类号： H01M10/0567 ,  H01G11/60 ,  H01G11/64 ,  H01M10/0525

摘要： This application provides an electrolyte and an electrochemical device, in which the electrolyte comprises an additive A and an additive B, wherein the additive A is present in an amount of 0.01% to 10% by mass in the electrolyte and the additive B is present in an amount of 0.1% to 10% by mass in the electrolyte and the electrolyte has a conductivity of 6 mS/cm to 10 mS/cm at 25° C. The present invention can improve the cycle performance and storage performance of the electrochemical device, in particular, improve the cycle performance and storage performance of the electrochemical device under high temperature and high voltage conditions while keeping the low temperature performance.

公开(公告)号：US10793585B2

公开(公告)日：2020-10-06

申请号：US15751841

申请日：2016-08-09

申请人： STELLA CHEMIFA CORPORATION

发明人： Toshitaka Sakaguchi ,  Sojiro Kon ,  Yoshifumi Katsura ,  Masashi Yamamoto ,  Tetsuo Nishida

IPC分类号： C07F9/11 ,  H01M10/054 ,  H01M10/0567 ,  C07F9/09 ,  H01M10/052 ,  H01G11/64 ,  H01M10/0568 ,  C07F9/12 ,  C07H15/252 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0569

摘要： Disclosed is a phosphoric acid diester salt which can suppress deterioration of charge-discharge characteristics of a power storage element, and can suppress the rise in internal resistance after storage at high temperature, a production method therefor, a non-aqueous electrolytic solution for a power storage element, and a power storage element. Disclosed is a phosphoric acid diester salt represented by the following chemical formula (1): wherein Mn+ represents a hydrogen ion, an alkali metal ion, an alkali earth metal ion, an aluminum ion, a transition metal ion, or an onium ion; R1 and R2 are different from each other and represent a hydrocarbon group having 1 to 10 carbon atoms, or a hydrocarbon group having 1 to 10 carbon atoms and having at least one of a halogen atom, a heteroatom, and an unsaturated bond; and n represents a valence.

公开(公告)号：US20200185772A1

公开(公告)日：2020-06-11

申请号：US16342400

申请日：2017-07-18

申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

发明人： Lu MIAO ,  Chunhua HU ,  Tiancheng YI ,  Yao JIANG ,  Chengdu LIANG

IPC分类号： H01M10/0567 ,  H01G11/06 ,  H01G11/64 ,  H01M10/0525 ,  H01M6/16

摘要： The present disclosure relates to the field of energy storage materials, and particularly, to an electrolyte and an electrochemical device. The electrolyte includes an additive A and an additive B, the additive A is selected from a group consisting of multi-cyano six-membered N-heterocyclic compounds represented by Formula I-1, Formula I-2 and Formula I-3, and combinations thereof, and the additive B is at least one halogenated cyclic carbonate compound. The electrochemical device includes the above electrolyte. The electrolyte of the present disclosure can effectively passivate surface activity of the positive electrode material, inhibit oxidation of the electrolyte, and effectively reduce gas production of the battery, while an anode SEI film can be formed to avoid a contact between the anode and the electrode and thus to effectively reduce side reactions.

公开(公告)号：US10679800B2

公开(公告)日：2020-06-09

申请号：US16724115

申请日：2019-12-20

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Hiroyuki Matsuura ,  Shigetaka Furusawa ,  Hidehiro Sasaki ,  Tatsuji Aoyama

IPC分类号： H01G11/60 ,  H01G11/24 ,  H01G11/04 ,  H01G9/145 ,  H01G9/07 ,  H01G11/64 ,  H01G9/035 ,  H01G9/055 ,  H01G11/62

摘要： An electrolytic capacitor includes a capacitor element. The capacitor element includes an anode including a dielectric layer thereon and a cathode member including a conductive polymer and in contact with the dielectric layer. The capacitor element is impregnated with a liquid containing at least one of polyalkylene glycol and derivatives of polyalkylene glycol. The liquid further contains an aromatic compound having a nitro group and at least one of a hydroxyl group and a carboxyl group.

公开(公告)号：US10566659B1

公开(公告)日：2020-02-18

申请号：US16530805

申请日：2019-08-02

申请人： SES Holdings Pte. Ltd.

发明人： Rajendra P. Singh ,  Shubha Nageswaran ,  Qichao Hu

IPC分类号： H01M10/0567 ,  H01M10/0568 ,  H01G11/64 ,  C01D13/00 ,  C01D15/00 ,  C01D17/00

摘要： Binary and ternary eutectic mixtures and corresponding electrolytes are disclosed. In some embodiments, binary eutectic mixtures and electrolytes each include a first salt, X1+Y1−, and a second salt, X2+Y2−, wherein each of X1+ and X2+ is an alkali metal cation and X1+ is different from X2+; and each of Y1− and Y2− is a sulfonimide anion and Y1− is different from Y2−. In ternary eutectic mixtures and electrolytes further include a third salt, X3+Y3−, wherein X3+ is different from each of X1+ and X2+. In some embodiments, the eutectic mixtures and electrolytes have melting points in a range of about 5° C. to about 70° C. Electrochemical devices containing such eutectic-mixture electrolytes are also disclosed.

公开(公告)号：US10541411B2

公开(公告)日：2020-01-21

申请号：US15326281

申请日：2015-07-15

申请人： Soichiro Kawakami

发明人： Soichiro Kawakami

IPC分类号： H01M4/134 ,  H01M4/04 ,  H01M4/36 ,  H01G11/50 ,  H01G11/70 ,  H01G11/86 ,  H01M10/0567 ,  H01G11/64 ,  H01G11/38 ,  H01G11/40 ,  H01G11/46 ,  H01G11/60 ,  H01G11/62 ,  H01M4/38 ,  H01M4/485 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/02

摘要： Provided is an anode active material for energy storage devices capable of electrochemically inserting and extracting lithium ions and production method thereof, an electrode structure including the active material and flake graphite, and an energy storage device using the electrode structure as an anode. The anode active material includes secondary particles that are aggregates of 10-300 nm primary particles containing silicon as a main component. The primary particles each include, as a surface layer, a composite metal oxide layer containing at least one or more metal elements selected from at least Al, Zr, Mg, Ca, and La and Li.

公开(公告)号：US10460882B2

公开(公告)日：2019-10-29

申请号：US15517268

申请日：2015-10-22

申请人： DAIKIN INDUSTRIES, LTD.

发明人： Kenzou Takahashi

IPC分类号： H01G11/62 ,  H01G11/64 ,  H01M10/0567 ,  H01M10/0569 ,  C07C211/63 ,  H01G11/28 ,  C01B35/06 ,  C07D207/00 ,  C07D209/04 ,  C07D211/00

摘要： The present invention aims to provide an electrolyte solution containing a quaternary ammonium salt as an electrolyte salt and is capable of providing an electrochemical device having a high capacitance retention and reducing generation of gas. The electrolyte solution of the present invention contains a solvent, a quaternary ammonium salt, and a nitrogen-containing unsaturated cyclic compound. The unsaturated cyclic compound is a nitrogen-containing unsaturated heterocyclic compound. The unsaturated cyclic compound excludes salts of the unsaturated cyclic compound and ionic liquids obtainable from the unsaturated cyclic compound.

公开(公告)号：US10446871B2

公开(公告)日：2019-10-15

申请号：US15572969

申请日：2015-12-21

申请人： UBE INDUSTRIES, LTD.

发明人： Junichi Chika

IPC分类号： H01M6/14 ,  H01M10/0525 ,  C07C43/04 ,  C07F9/06 ,  H01G11/62 ,  H01M10/0568 ,  H01M10/0569 ,  H01G11/64 ,  C01B25/455 ,  C07F1/02 ,  H01G11/06 ,  H01G11/60

摘要： The present invention is concerned with (1) a lithium salt compound including a lithium cation including, as a ligand, at least one ether compound selected from 2,5,8,11-tetraoxadodecane and 2,5,8,11,14-pentaoxapentadecane and a difluorophosphate anion; (2) a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing the aforementioned lithium salt compound; (3) a lithium ion secondary battery including a positive electrode, a negative electrode, and the aforementioned nonaqueous electrolytic solution; (4) a lithium ion capacitor using the aforementioned nonaqueous electrolytic solution; and (5) a production method of the aforementioned lithium salt compound, including bringing the aforementioned ether compound and lithium difluorophosphate into contact with each other. The nonaqueous electrolytic solution of the present invention is excellent in high-temperature cyclic property and output characteristics after high-temperature cycles and is capable of suppressing metal elution from a positive electrode or the like.