公开(公告)号：US11949073B2

公开(公告)日：2024-04-02

申请号：US17132591

申请日：2020-12-23

申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

发明人： Peipei Chen ,  Chenghua Fu ,  Junmin Feng ,  Chengdu Liang

IPC分类号： H01M10/00 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/40 ,  H01M4/02

CPC分类号： H01M10/0569 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0568 ,  H01M50/40 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2300/004

摘要： This application provides a nonaqueous electrolytic solution, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The nonaqueous electrolytic solution includes a nonaqueous solvent and a lithium salt. The nonaqueous solvent includes a carbonate solvent and a high-oxidation-potential solvent. The carbonate solvent is a mixture of a cyclic carbonate and a chain carbonate, and the high-oxidation-potential solvent is selected from one or more of compounds denoted by Formula I and Formula II. This application improves electrochemical performance of the lithium-ion battery under a high temperature and a high voltage as well as safety performance such as overcharge safety and hot-oven safety of the lithium-ion battery, and also ensures kinetic performance of the lithium-ion battery to some extent.

公开(公告)号：US11728543B2

公开(公告)日：2023-08-15

申请号：US16628837

申请日：2018-07-09

申请人： UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION

发明人： Prashant N. Kumta ,  Bharat Gattu ,  Moni Kanchan Datta ,  Oleg Velikokhatnyi ,  Pavithra Murugavel Shanthi ,  Prashanth Jampani Hanumantha

IPC分类号： H01M50/44 ,  D01D5/00 ,  D01F1/10 ,  H01M10/052 ,  H01M10/0565 ,  H01M50/403 ,  H01M50/431 ,  H01M50/489 ,  H01M50/426 ,  H01M50/434 ,  H01M50/497 ,  H01M50/40 ,  H01M10/0525

CPC分类号： H01M50/44 ,  D01D5/003 ,  D01F1/10 ,  H01M10/052 ,  H01M10/0565 ,  H01M50/40 ,  H01M50/403 ,  H01M50/426 ,  H01M50/431 ,  H01M50/434 ,  H01M50/489 ,  H01M50/497 ,  H01M10/0525 ,  H01M2300/0082 ,  H01M2300/0094

摘要： The invention relates to lithium ion batteries and, more particularly, to lithium ion conducting composite polymer electrolyte separators. The separators include a nanofiber mat composed of electrospun nanofibers. The nanofibers include a polymer having one or more polar halogen groups, a lithium-containing solid or liquid electrolyte and nanoparticle filler. The polymer, electrolyte and filler are combined to form a solution that is subjected to the electro-spinning process to produce electrospun nanofibers in the form of the mat.

公开(公告)号：US12125988B2

公开(公告)日：2024-10-22

申请号：US18070506

申请日：2022-11-29

申请人： DARAMIC, LLC

发明人： Jeffrey K. Chambers

IPC分类号： H01M10/42 ,  H01M4/62 ,  H01M10/06 ,  H01M10/12 ,  H01M50/40 ,  H01M50/411 ,  H01M50/417 ,  H01M50/431 ,  H01M50/434 ,  H01M50/449 ,  H01M50/454 ,  H01M50/491

CPC分类号： H01M10/4235 ,  H01M4/62 ,  H01M4/628 ,  H01M10/06 ,  H01M10/12 ,  H01M50/40 ,  H01M50/411 ,  H01M50/417 ,  H01M50/431 ,  H01M50/434 ,  H01M50/449 ,  H01M50/454 ,  H01M50/491 ,  H01M2220/20 ,  Y02E60/10

摘要： In at least select embodiments, the instant disclosure is directed to new or improved battery separators, components, materials, additives, surfactants, lead acid batteries, systems, vehicles, and/or related methods of production and/or use. In at least certain embodiments, the instant disclosure is directed to surfactants or other additives for use with a battery separator for use in a lead acid battery, to battery separators with a surfactant or other additive, and/or to batteries including such separators. In at least certain select embodiments, the instant disclosure relates to new or improved lead acid battery separators and/or systems including improved water loss technology and/or methods of manufacture and/or use thereof. In at least select embodiments, the instant disclosure is directed toward a new or improved lead acid battery separator or system with one or more surfactants and/or additives, and/or methods for constructing lead acid battery separators and batteries with such surfactants and/or additives for improving and/or reducing water loss from the battery.

公开(公告)号：US20240170644A1

公开(公告)日：2024-05-23

申请号：US18430376

申请日：2024-02-01

申请人： BATTERO TECH CORPORATION LIMITED

发明人： Haining HUANG

IPC分类号： H01M4/36 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M50/40

CPC分类号： H01M4/362 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M50/40

摘要： A positive electrode active composite for lithium-ion batteries, consisting of 60%-99% by weight of a lithium iron phosphate material with an olivine structure and 1%-40% by weight of a layered ternary material. A lithium-ion battery, whose positive electrode includes such active composite, is provided, and in normal use, an upper voltage range is controlled between 3.8-4.0 V. When there is a certain capacity attenuation, a battery voltage can be increased to a range of greater than or equal to 4.1 V and less than or equal to 4.4 V for activation. Under the activation voltage, the lithium-rich ternary material can compensate for the active lithium loss after the battery aging.

公开(公告)号：US20240113335A1

公开(公告)日：2024-04-04

申请号：US18277481

申请日：2022-11-08

申请人： LG Energy Solution, Ltd.

发明人： Haeun Kim ,  Chul Haeng Lee ,  Jeongwoo Oh ,  Jinhyeon Jeong

IPC分类号： H01M10/0567 ,  H01M4/485 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/40

CPC分类号： H01M10/0567 ,  H01M4/485 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/40 ,  H01M2004/028

摘要： A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and a phosphoric acid-based additive represented by Formula 1 below, which improves the high temperature stability in a lithium secondary battery:




wherein R is described herein.

公开(公告)号：US11764438B2

公开(公告)日：2023-09-19

申请号：US17014034

申请日：2020-09-08

申请人： Samsung SDI Co., Ltd.

发明人： Eun Ok Kwak ,  Jin Bhum Yun ,  Jang Hoon Kim ,  Jin Taek Kim ,  Jong Yeol Woo ,  Kwang Deuk Lee ,  Woo Sung Choi

IPC分类号： H01M10/658 ,  H01M10/647 ,  H01M10/613 ,  H01M50/383 ,  H01M50/30 ,  H01M50/24 ,  H01M50/40 ,  H01M50/147

CPC分类号： H01M50/383 ,  H01M10/613 ,  H01M10/647 ,  H01M10/658 ,  H01M50/147 ,  H01M50/24 ,  H01M50/394 ,  H01M50/40

摘要： An energy storage module includes: a cover member accommodating a plurality of battery cells in an internal receiving space, the battery cells being arranged in a first direction, each of the battery cells including a vent; a top plate coupled to a top of the cover member and including a duct corresponding to the vent of each of the battery cells; a top cover coupled to a top of the top plate and having a discharge opening corresponding to the duct; and an extinguisher sheet between the top cover and the top plate, the extinguisher sheet being configured to emit a fire extinguishing agent at a reference temperature.

公开(公告)号：US11735788B2

公开(公告)日：2023-08-22

申请号：US16901538

申请日：2020-06-15

申请人： Samsung SDI Co., Ltd.

发明人： Jin Taek Kim ,  Eun Ok Kwak ,  Jang Hoon Kim ,  Jin Bhum Yun ,  Jong Yeol Woo ,  Kwang Deuk Lee ,  Woo Sung Choi

IPC分类号： H01M10/658 ,  H01M10/647 ,  H01M50/24 ,  H01M50/30 ,  H01M50/40 ,  H01M50/20 ,  H01M10/42

CPC分类号： H01M10/658 ,  H01M10/425 ,  H01M10/4207 ,  H01M10/647 ,  H01M50/20 ,  H01M50/24 ,  H01M50/30 ,  H01M50/40

摘要： An energy storage module includes a plurality of battery cells, each including a vent; a plurality of insulation spacers, at least one of the insulation spacers being located between long side surfaces of each adjacent pair of the battery cells; a cover member including an internal receiving space; a top plate coupled to a top portion of the cover member and including ducts respectively corresponding to the vents of the battery cells, and opening holes respectively corresponding to the insulation spacers; a top cover coupled to a top portion of the top plate and including discharge holes respectively corresponding to the ducts; and an extinguisher sheet located between the top cover and the top plate, configured to emit a fire extinguishing agent at a temperature exceeding a certain temperature, and including opening holes positioned to correspond to the ducts.

公开(公告)号：US11929502B2

公开(公告)日：2024-03-12

申请号：US18133925

申请日：2023-04-12

申请人： UCHICAGO ARGONNE, LLC

发明人： Albert L. Lipson ,  Jessica L. Durham

IPC分类号： H01M4/525 ,  H01M4/04 ,  H01M4/36 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/40

CPC分类号： H01M4/525 ,  H01M4/0471 ,  H01M4/366 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/40 ,  H01M2300/002

摘要： A stabilized lithium metal oxide cathode material comprises microparticles of lithium metal oxide in which individual particles thereof a core of lithium metal oxide and a coating of a different lithium metal oxide surrounding the core. There is an interface layer between the cores and the coatings in which there are gradients of metal ions in the direction of coating to core. The materials are made by a three stage process involving coprecipitating precursor metal hydroxide core particles at a controlled pH; coprecipitating a different metal hydroxide coating on the particles without controlling the pH; and then calcining the resulting coated precursor particles with lithium hydroxide to form the stabilized lithium metal oxide material.

公开(公告)号：US11791500B2

公开(公告)日：2023-10-17

申请号：US16979858

申请日：2019-03-20

申请人： ZEON CORPORATION

发明人： Kazuyuki Onishi ,  Hiroshi Omori

IPC分类号： H01M10/0585 ,  H01M50/403 ,  H01M50/46 ,  H01M10/04 ,  H01M50/40 ,  H01M50/477 ,  H01M50/474

CPC分类号： H01M10/0585 ,  H01M10/0404 ,  H01M50/40 ,  H01M50/403 ,  H01M50/46 ,  H01M50/474 ,  H01M50/477

摘要： The present disclosure provides an efficient technique for manufacturing laminates for secondary batteries each having a separator and electrodes, which in turn enables continuous and efficient manufacturing of laminate type secondary batteries. An apparatus for manufacturing a laminate for a secondary battery of the present disclosure includes an electrode roll of a long electrode web rolled into a roll shape; a separator roll of a long separator web rolled into a roll shape; a lamination mechanism for laminating the separator web fed out from the separator roll and the electrode web fed out from the electrode roll while causing the separator web to be bent or curled to form a protruding portion extending across an entire width of the separator web so that the protruding portion is disposed so as to oppose to the electrode web; and a cutting mechanism for cutting at least the electrode web portion in a laminated article of the separator web and the electrode web at a position where the protruding portion has been provided.

公开(公告)号：US11740296B2

公开(公告)日：2023-08-29

申请号：US17286928

申请日：2020-10-06

申请人： LG CHEM, LTD.

发明人： Jong Keon Yoon ,  Jeong Beom Lee ,  Hoe Jin Hah

IPC分类号： G01R31/385 ,  H01M50/40 ,  G01N27/12 ,  G01R31/389 ,  H01M10/42

CPC分类号： G01R31/3865 ,  G01N27/12 ,  G01R31/389 ,  H01M10/4285 ,  H01M50/40

摘要： The present invention relates to a device and method which can measure, in real time, the resistance, depending on pressure changes, of a separator that is immersed in an electrolyte, and enables analysis of the resistance properties of a separator reflecting the real operating state of a secondary battery.