公开(公告)号：US20240304961A1

公开(公告)日：2024-09-12

申请号：US18586547

申请日：2024-02-26

申请人： HONDA MOTOR CO., LTD.

发明人： Hiroshi SAKAI ,  Hiroshi OGASA ,  Wataru SHIMIZU

IPC分类号： H01M50/581 ,  H01M4/134 ,  H01M4/38 ,  H01M4/66 ,  H01M10/04 ,  H01M10/052 ,  H01M50/489

CPC分类号： H01M50/581 ,  H01M4/134 ,  H01M4/382 ,  H01M4/661 ,  H01M10/0481 ,  H01M10/052 ,  H01M50/489

摘要： A lithium secondary battery of the present invention comprises: a positive electrode comprising a positive electrode current collector and a positive electrode material mixture layer, a negative electrode comprising a negative electrode current collector and a lithium metal foil, and a separator, and further comprises a thermally deformable separator disposed in the vicinity of the positive electrode material mixture layer on the surface of the positive electrode current collector, and an extension portion that extends from the lithium metal foil so as to be in contact with the thermally deformable separator; the thermally deformable separator having a melting point of 80° C. or higher, which is equal to or lower than the melting point of lithium metal; and when a thermally deformable separator 31 thermally deforms, the extension portion comes into contact with the positive electrode current collector, resulting in a short circuit of the positive electrode and the negative electrode.

公开(公告)号：US20240304869A1

公开(公告)日：2024-09-12

申请号：US18279544

申请日：2022-10-07

申请人： LG Energy Solution, Ltd.

发明人： Jun Woo Huh ,  Ki Woong Kim

IPC分类号： H01M10/0585 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/052 ,  H01M10/48 ,  H01M50/531

CPC分类号： H01M10/0585 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/48 ,  H01M50/531 ,  H01M2004/028

摘要： An LFP battery cell includes an electrode assembly having at least one first mono-cell and at least one second mono-cell received in a battery case. Each of the first mono-cell and the second mono-cell includes a positive electrode tab and a negative electrode tab. The positive electrode tab of the first mono-cell protrudes in the same direction as the positive electrode tab of the second mono-cell but does not overlap the positive electrode tab of the second mono-cell, whereby SoC of the LFP battery cell is easily measured.

公开(公告)号：US20240304863A1

公开(公告)日：2024-09-12

申请号：US18576351

申请日：2023-01-11

申请人： LG ENERGY SOLUTION, LTD.

发明人： Young Jun KO ,  Joo Hwan SUNG ,  Kyung Hwan JUNG

IPC分类号： H01M10/0567 ,  H01M4/02 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/36 ,  H01M4/38 ,  H01M4/58 ,  H01M4/583 ,  H01M10/052 ,  H01M10/058

CPC分类号： H01M10/0567 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/366 ,  H01M4/386 ,  H01M4/5825 ,  H01M4/583 ,  H01M10/052 ,  H01M10/058 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20

摘要： A lithium secondary battery includes an electrode assembly comprising a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode. The lithium secondary battery includes an electrolyte composition comprising a non-aqueous organic solvent, a lithium salt, and an electrolyte additive. The positive electrode comprises a positive electrode active layer including a positive electrode active material and a polymer film stacked on a positive electrode current collector. The negative electrode comprises a negative electrode current collector, and a negative electrode active layer comprises a carbon material and a silicon material as a negative electrode active material on the negative electrode current collector. A ratio (DC/CC) of an initial discharge capacity (DC) and an initial charge capacity (CC) of the lithium secondary battery is 0.7 to 1.2.

公开(公告)号：US20240304812A1

公开(公告)日：2024-09-12

申请号：US18665566

申请日：2024-05-16

申请人： National Taiwan University of Science and Technology

发明人： Fu-Ming Wang

IPC分类号： H01M4/60 ,  C07F7/08 ,  H01M4/02 ,  H01M4/137 ,  H01M4/36 ,  H01M10/052

CPC分类号： H01M4/604 ,  C07F7/081 ,  H01M4/137 ,  H01M4/366 ,  H01M10/052 ,  H01M2004/027

摘要： A silicon compound, a preparation method thereof, and a lithium battery are provided. The silicon compound is represented by the following Chemical formula 1:


(R1)m—Si—(L—A)n   [Chemical formula 1]

In Chemical formula 1, each substituent is defined the same as in the specification.

公开(公告)号：US20240304795A1

公开(公告)日：2024-09-12

申请号：US18396780

申请日：2023-12-27

申请人： UIF (University Industry Foundation), Yonsei University

发明人： Yoon Seok JUNG ,  Jong Hyeok PARK ,  Seung Goo JUN ,  Gwang Hyun LEE

IPC分类号： H01M4/36 ,  H01M4/02 ,  H01M4/04 ,  H01M4/38 ,  H01M4/62 ,  H01M4/66 ,  H01M4/75 ,  H01M10/052 ,  H01M10/0562

CPC分类号： H01M4/366 ,  H01M4/0404 ,  H01M4/386 ,  H01M4/623 ,  H01M4/625 ,  H01M4/661 ,  H01M4/75 ,  H01M10/052 ,  H01M10/0562 ,  H01M2004/027 ,  H01M2220/20 ,  H01M2300/0065

摘要： The present disclosure relates to a silicon anode, a method for manufacturing the same, and a battery including the same. Particularly, the silicon anode improves the interfacial contact between the silicon anode and a sulfide-based solid electrolyte layer, and thus the interfacial contact can be maintained uniformly during lithiation even under low pressure, and high delithiation capacity and coulombic efficiency can be realized.
In addition, the battery allows the lithium-alloying metal layer stacked on the anode active material layer to be applied to the silicon anode, and thus the lithium-alloying metal layer stacked on the silicon anode forms alloy with lithium in real time through the conduction of lithium ions from the solid electrolyte during lithiation/delithiation, and the silicon anode becomes soft and adhesive and shows improved interfacial contact between the lithium-alloying metal layer and the solid electrolyte layer, resulting in improvement of the life characteristics and capacity retention of the battery.

公开(公告)号：US12087507B2

公开(公告)日：2024-09-10

申请号：US18011426

申请日：2022-05-30

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Koichi Hiraoka ,  Yuima Kimura ,  Ryusuke Okoshi ,  Yuji Asano ,  Sumire Jinno ,  Ryosuke Baba

IPC分类号： H01G11/84 ,  G01R27/26 ,  H01G11/06 ,  H01G11/34 ,  H01G11/50 ,  H01G11/52 ,  H01M4/38 ,  H01M10/052 ,  H01M10/0525

CPC分类号： H01G11/84 ,  G01R27/2605 ,  H01G11/06 ,  H01G11/34 ,  H01G11/50 ,  H01G11/52 ,  H01M4/382 ,  H01M10/052 ,  H01M10/0525

摘要： An object of the present disclosure is to provide a doping method in which the status of the progress of a main reaction can be estimated in the lithium carbonate decomposition-type doping step of a nonaqueous lithium power storage element. The separation method, the doping method, and the doping apparatus according to the present disclosure include calculating a capacitor current density iC and an electrode reaction current density iR based on voltage and current of a cell that are measured during doping of the cell.

公开(公告)号：US20240297347A1

公开(公告)日：2024-09-05

申请号：US18268819

申请日：2021-12-17

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

发明人： Yohei Uchiyama ,  Kiyohiro Ishii

IPC分类号： H01M10/0569 ,  H01M4/40 ,  H01M4/46 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/42

CPC分类号： H01M10/0569 ,  H01M4/405 ,  H01M4/466 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/4235 ,  H01M2300/0034

摘要： A lithium secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The negative electrode includes a lithium alloy containing magnesium. At the negative electrode, a lithium metal deposits during charge, and the lithium metal dissolves during discharge. The non-aqueous electrolyte contains a hydrofluoroether and lithium ions.

公开(公告)号：US20240297299A1

公开(公告)日：2024-09-05

申请号：US18589898

申请日：2024-02-28

申请人： SK ON CO., LTD.

发明人： Yong Seok LEE ,  Sung Do KIM ,  Jeong A KIM ,  Joon Hyung MOON ,  Seung Deok SEO ,  Young Mo YANG ,  Kwang Ho JEONG ,  Ju Ho CHUNG

IPC分类号： H01M4/36 ,  H01M4/02 ,  H01M4/04 ,  H01M4/133 ,  H01M4/137 ,  H01M4/1393 ,  H01M4/1399 ,  H01M4/587 ,  H01M4/60 ,  H01M10/052

CPC分类号： H01M4/366 ,  H01M4/0404 ,  H01M4/133 ,  H01M4/137 ,  H01M4/1393 ,  H01M4/1399 ,  H01M4/587 ,  H01M4/602 ,  H01M10/052 ,  H01M2004/027

摘要： An anode for a lithium secondary battery includes an anode current collector, a second anode active material layer disposed on the anode current collector and including a second anode active material that includes a graphite-based active material and composite particles, and a first anode active material layer disposed between the anode current collector and the second anode active material layer and including a first anode active material that includes a graphite-based active material and does not include the composite particles. Each of the composite particles includes a carbon-based particle including pores, a silicon-containing coating layer disposed on an inside of the pores of the carbon-based particle or on a surface of the carbon-based particle, and a surface oxide layer disposed on the silicon-containing coating layer and including a silicon oxide.

公开(公告)号：US12080890B2

公开(公告)日：2024-09-03

申请号：US18063092

申请日：2022-12-08

申请人： KURARAY CO., LTD.

发明人： Takafumi Izawa ,  Kengo Tachikawa ,  Hideharu Iwasaki

IPC分类号： H01M4/587 ,  C01B32/05 ,  H01B1/04 ,  H01M4/02 ,  H01M10/052

CPC分类号： H01M4/587 ,  C01B32/05 ,  H01B1/04 ,  H01M10/052 ,  C01P2002/78 ,  C01P2002/82 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/40 ,  C01P2006/80 ,  H01M2004/021 ,  H01M2004/027

摘要： The present invention provides a carbonaceous material suitable for a negative electrode active material for non-aqueous electrolyte secondary batteries (e.g., lithium ion secondary batteries, sodium ion secondary batteries, lithium sulfur batteries, lithium air batteries) having high charge/discharge capacities, and preferably high charge/discharge efficiency and low resistance, a negative electrode comprising the carbonaceous material, a non-aqueous electrolyte secondary battery comprising the negative electrode, and a production method of the carbonaceous material. The present invention relates to a carbonaceous material having a nitrogen content obtained by elemental analysis of 3.5 mass % or more, a ratio of nitrogen content and hydrogen content (RN/H) of 6 or more and 100 or less, a ratio of oxygen content and nitrogen content (RO/N) of 0.1 or more and 1.0 or less, and a carbon interplanar spacing (d002) observed by X-ray diffraction measurement of 3.70 Å or more.

公开(公告)号：US12080852B2

公开(公告)日：2024-09-03

申请号：US16967519

申请日：2019-11-14

申请人： SAMSUNG SDI CO., LTD.

发明人： Kyoung Hwan Kim ,  Cheoul Whan Kim

IPC分类号： H01M10/0583 ,  H01M10/052

CPC分类号： H01M10/0583 ,  H01M10/052

摘要： The present invention relates to a secondary battery capable of enhancing safety and test reliability. According to one embodiment, disclosed is a secondary battery comprising: an electrode assembly in which a first electrode plate and a second electrode plate are alternately stacked; and a case for accommodating the electrode assembly, wherein the first electrode plate includes an outer electrode plate located at the outermost part of the electrode assembly, and an inner electrode plate located inside the electrode assembly, and the outer electrode plate is smaller than the inner electrode plate and the second electrode plate.