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公开(公告)号：US20240274807A1
公开(公告)日：2024-08-15
申请号：US18567805
申请日：2022-04-19
发明人： YUSUKE KAWAHARA , KATSUYA MIYAHARA
IPC分类号： H01M4/40 , H01M4/02 , H01M4/06 , H01M4/134 , H01M4/48 , H01M6/16 , H01M10/052 , H01M10/0587
CPC分类号： H01M4/405 , H01M4/06 , H01M4/134 , H01M4/483 , H01M6/16 , H01M10/052 , H01M10/0587 , H01M2004/021
摘要： A wound non-aqueous electrolyte battery includes a positive electrode, a negative electrode, a separator provided between the positive and negative electrodes, and a non-aqueous electrolyte. The negative electrode includes a lithium-aluminum alloy sheet. The lithium-aluminum alloy sheet has surfaces including a surface of which parts are flush and connected with one another via grain boundaries of lithium-aluminum alloy. An average grain boundary number N is 8.75 or less, the average grain boundary number N being provided as ΣGi/ΣLi by dividing ΣGi by ΣLi, where ΣGi is a sum of numbers of grain boundaries Gi out of the plurality of grain boundaries which intersect M line segments PQi respectively connecting point Pi to point Qi on the surface of the lithium-aluminum alloy sheet, ΣLi is a sum of lengths Li of the M line segments PQi, M is an integer greater than 1, and i is an integer satisfying 1
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公开(公告)号：US20240204207A1
公开(公告)日：2024-06-20
申请号：US18263767
申请日：2022-01-26
CPC分类号： H01M4/806 , H01M4/06 , H01M4/50 , H01M2004/028
摘要： A non-aqueous electrolyte battery includes a positive electrode, a negative electrode, a separator between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The positive electrode includes a positive electrode active material and an expanded metal. The expanded metal includes a frame portion constituting meshes. The frame portion includes strands and bonds connecting the strands to one another. The frame portion includes strands and bonds connecting the strands to one another. Each group of plural strands out of the strands surround an aperture of a corresponding one of the meshes. The number of the plural strands surrounding the aperture is four or more. At least one of the plural strands surrounding the aperture has a bent shape or a curved line shape.
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3.发明授权公开(公告)号：US11901553B2
公开(公告)日：2024-02-13
申请号：US17698670
申请日：2022-03-18
IPC分类号： H01M4/525 , H01M6/50 , H01M4/06 , H01M4/24 , H01M4/36 , H01M4/52 , H01M4/131 , H01M4/32 , H01M10/30 , H01M6/04 , H01M4/38 , H01M10/48 , H01M4/02 , F02M51/02
CPC分类号： H01M4/525 , H01M4/06 , H01M4/131 , H01M4/244 , H01M4/32 , H01M4/366 , H01M4/38 , H01M4/52 , H01M6/04 , H01M6/505 , H01M6/5083 , H01M10/30 , H01M10/488 , F02M51/02 , H01M2004/021 , H01M2300/0085
摘要： The invention is directed towards a battery. The battery includes a cathode, an anode, a separator between the cathode and the anode, and an electrolyte. The cathode includes a conductive additive and an electrochemically active cathode material. The electrochemically active cathode material includes a beta-delithiated layered nickel oxide. The beta-delithiated layered nickel oxide has a chemical formula. The chemical formula is LixAyNi1+a−zMzO2·nH2O where x is from about 0.02 to about 0.20; y is from about 0.03 to about 0.20; a is from about 0 to about 0.2; z is from about 0 to about 0.2; and n is from about 0 to about 1. Within the chemical formula, A is an alkali metal. The alkali metal includes potassium, rubidium, cesium, and any combination thereof. Within the chemical formula, M comprises an alkaline earth metal, a transition metal, a non-transition metal, and any combination thereof. The anode includes an electrochemically active anode material. The electrochemically active anode material includes zinc, zinc alloy, and any combination thereof.
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公开(公告)号：US11784010B2
公开(公告)日：2023-10-10
申请号：US16685389
申请日：2019-11-15
发明人： Dewen Kong , Xiaochao Que , Meiyuan Wu , Si Chen , Haijing Liu , Mark W Verbrugge
IPC分类号： H01G11/06 , H01G11/34 , H01G11/24 , H01G11/72 , H01G11/86 , H01M10/0525 , H01G11/46 , H01M4/06 , H01M4/13 , H01M4/62 , H01M4/02
CPC分类号： H01G11/06 , H01G11/24 , H01G11/34 , H01G11/46 , H01G11/72 , H01G11/86 , H01M4/06 , H01M4/13 , H01M4/62 , H01M10/0525 , H01M2004/021 , H01M2004/028 , H01M2220/20
摘要： A capacitor-assisted electrode for an electrochemical cell that cycles lithium ions is provided. The capacitor-assisted electrode may include at least two electroactive materials disposed on one or more surfaces of a current collector. A first electroactive material of the at least two electroactive materials may have a first reversible specific capacity and forms a first electroactive material having a first press density. A second electroactive material of the at least two electroactive materials has a second reversible specific capacity and forms a second electroactive material having a second press density. The second reversible specific capacity may be different from the first reversible specific capacity. The second press density may be different from the first press density. One or more capacitor materials may be disposed on or intermingled with one or more of the at least two electroactive materials.
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公开(公告)号：US11710834B2
公开(公告)日：2023-07-25
申请号：US16981118
申请日：2018-10-10
发明人： Miyuki Nakai , Yasuyuki Kusumoto , Atsushi Fukui
摘要： A lithium primary battery including: a battery case; an electrode group; and a nonaqueous electrolyte; the nonaqueous electrolyte contains a nonaqueous solvent, a solute, and an additive; the electrode group includes a positive electrode, a negative electrode, and a separator interposed therebetween; the negative electrode includes foil composed of metal lithium or a lithium alloy, has a shape extending in a longitudinal direction and a short direction, and provided with a long tape adhered to at least one main surface of the negative electrode along the longitudinal direction thereof; the tape includes a resin substrate and an adhesive layer and has a width of 0.5 to 3 mm; and the additive is a lithium salt represented by the following formula (1): LixMCyOzFα (1≤x≤2, 0≤y≤6, 0≤z≤8, 0≤α≤6, and 1≤y+z+α are satisfied, and y and z are not simultaneously 0), and the element M includes at least one of phosphorus and boron.
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公开(公告)号：US11495823B2
公开(公告)日：2022-11-08
申请号：US16902052
申请日：2020-06-15
发明人： Chris Barge
摘要： An apparatus for separating battery plates includes a work surface for receiving a stack of battery plates, and an alignment mechanism for aligning the battery plates on the work surface. The work surface is movable between a first position in which it is angled with respect to a horizontal plane and a second position in which it is substantially aligned with the horizontal plane. When the work surface moves between the first and second position adjacent battery plates of the stack are displaced relative to each other.
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公开(公告)号：US11217787B2
公开(公告)日：2022-01-04
申请号：US16876055
申请日：2020-05-17
发明人： Herzel Yamin , Avi Ulus , Onit Srur Lavi , Chen Menachem
IPC分类号： H01M4/36 , H01M4/38 , H01M4/66 , H01M6/14 , H01M50/44 , H01M4/58 , H01M4/06 , H01M50/116 , H01M50/183 , H01M50/431
摘要： A primary electrochemical cell including a cell housing, an anode including metallic lithium, a liquid SOCl2 cathode and a separator separating the anode from the cathode. The liquid SOCl2 cathode material includes a salt of a Lewis base with a Lewis acid dissolved in the SOCl2 to form an electrolyte solution and an amount of SnCl2 dissolved in the electrolyte solution. The cell has a higher TMV and lower cell impedance after extended periods of cell storage at room or higher temperatures as compared to similar prior art primary Li/SOCl2 cells that do not include the SnCl2 additive.
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公开(公告)号：US11211615B2
公开(公告)日：2021-12-28
申请号：US16145830
申请日：2018-09-28
发明人： Zhufang Liu , Dawn Marie Freeman , Angelo Mandato
摘要： Various embodiments are directed to an electrochemical cell having a non-homogeneous anode. The electrochemical cell includes a container, a cathode forming a hollow cylinder within the container, an anode positioned within the hollow cylinder of the cathode, and a separator between the cathode and the anode. The anode comprises at least two concentric anode portions, defined by different anode characteristics. For example, the two anode portions may contain different surfactant types, which provides the two anode portions with different charge transfer resistance characteristics. By lowering the charge transfer resistance of a portion of an anode located proximate the current collector of the cell (and away from the separator) relative to an anode portion located adjacent the separator, improved cell discharge performance may be obtained.
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公开(公告)号：US20210391616A1
公开(公告)日：2021-12-16
申请号：US17410278
申请日：2021-08-24
发明人： Dong Zhang , Jason A. Mudge , David Timothy Andrew Darch , Mario Destephen , Ernest Ndzebet , Umamaheswari Janakiraman
IPC分类号： H01M50/147 , H01M4/80 , H01M4/583 , H01M4/62 , H01M6/16 , H01M4/38 , H01M4/36 , H01M4/06 , H01M50/172 , H01M50/183 , H01M50/636
摘要： An electrochemical cell that converts chemical energy to electrical energy includes a cathode with an active material of fluorinated carbon on a perforated metal cathode current collector, a lithium anode on a perforated metal anode current collector, a stepped header, a stable electrolyte, and a separator. In various embodiments, an anode current collector design, a cathode current collector design, a stepped header design, a cathode formulation, an electrolyte formulation, a separator, and a battery incorporating the electrochemical cell are provided.
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公开(公告)号：US11196044B2
公开(公告)日：2021-12-07
申请号：US17057527
申请日：2019-11-15
发明人： Yaohui Wang , Xing Li , Zhenhua Li
IPC分类号： H01M4/36 , H01M50/581 , H01G11/28 , H01G11/32 , H01M4/06 , H01M4/13 , H01M4/62 , H01M6/50 , H01M10/42 , H01M4/02
摘要： The present application relates to a positive electrode plate and an electrochemical device. The positive electrode plate includes a current collector, a positive active material layer and a safety coating disposed between the current collector and the positive active material layer, the safety coating including a polymer matrix and a conductive material, wherein the polymer matrix is fluorinated polyolefin and/or chlorinated polyolefin, and when the safety coating and the positive active material layer are collectively referred to as a positive film layer, the positive film layer includes Na ions and/or K ions at a content of 100 ppm or more, and has an absorption peak at 1646 cm−1 in infrared absorption spectrum. The positive electrode plate may improve safety performance at elevated temperature of the electrochemical device by quickly disconnecting the circuit at high temperature conditions or when an internal short circuit occurs.
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