公开(公告)号：US20240030452A1

公开(公告)日：2024-01-25

申请号：US18480078

申请日：2023-10-03

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

Inventor： Inhyuk SON ,  Mijong KIM ,  Jumyeung LEE ,  Minwoo LIM ,  Junghyun CHOI ,  Sungsoo HAN

IPC: H01M4/62 ,  H01M4/38 ,  H01M4/36 ,  H01M4/583 ,  H01M10/0565 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/02 ,  H01M4/04

CPC classification number: H01M4/625 ,  H01M4/38 ,  H01M4/366 ,  H01M4/583 ,  H01M10/0565 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/364 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/386 ,  H01M4/02 ,  H01M4/0471 ,  H01M4/362 ,  H01M2004/027

Abstract: A porous silicon composite includes: a porous core including a porous silicon composite secondary particle; and a shell disposed on a surface of the porous core and surrounding the porous core, wherein the porous silicon composite secondary particle includes an aggregate of silicon composite primary particles, each including silicon, a silicon suboxide on a surface of the silicon, and a first graphene on a surface of the silicon suboxide, wherein the shell include a second graphene, and at least one of the first graphene and the second graphene includes at least one element selected from nitrogen, phosphorus, and sulfur.

公开(公告)号：US20240030417A1

公开(公告)日：2024-01-25

申请号：US18376885

申请日：2023-10-05

Applicant: Applied Materials, Inc.

Inventor： Subramanya P. HERLE ,  Dieter HAAS

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62 ,  B32B27/08 ,  H01M4/13 ,  H01M4/139 ,  C23C14/56 ,  B32B27/28 ,  C23C14/14 ,  B32B15/08 ,  B32B7/04 ,  B32B27/34 ,  B32B15/09 ,  B32B27/30 ,  B32B15/082 ,  B32B27/36 ,  B32B7/06 ,  B32B15/04 ,  B32B27/40 ,  B32B15/085 ,  B32B27/32 ,  B32B15/088 ,  H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/386 ,  H01M4/587 ,  H01M4/628 ,  B32B27/08 ,  H01M4/13 ,  H01M4/139 ,  C23C14/562 ,  B32B27/281 ,  C23C14/14 ,  B32B15/08 ,  B32B7/04 ,  B32B27/34 ,  B32B15/09 ,  B32B27/308 ,  B32B15/082 ,  B32B27/28 ,  B32B27/285 ,  B32B27/365 ,  B32B7/06 ,  B32B15/04 ,  B32B27/302 ,  B32B27/36 ,  B32B27/40 ,  B32B15/085 ,  B32B27/32 ,  B32B15/088 ,  H01M4/0404 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/364 ,  H01M4/382 ,  H01M10/0525 ,  B32B2307/748 ,  B32B2457/00 ,  B32B2270/00 ,  B32B2307/732 ,  B32B2307/546 ,  H01M2004/027

Abstract: In one implementation, an integrated processing tool for the deposition and processing of lithium metal in energy storage devices. The integrated processing tool may be a web tool. The integrated processing tool may comprises a reel-to-reel system for transporting a continuous sheet of material through the following chambers: a chamber for depositing a thin film of lithium metal on the continuous sheet of material and a chamber for depositing a protective film on the surface of the thin film of lithium metal. The chamber for depositing a thin film of lithium metal may include a PVD system, such as an electron-beam evaporator, a thin film transfer system, or a slot-die deposition system. The chamber for depositing a protective film on the lithium metal film may include a chamber for depositing an interleaf film or a chamber for depositing a lithium-ion conducting polymer on the lithium metal film.

公开(公告)号：US11870065B1

公开(公告)日：2024-01-09

申请号：US18339237

申请日：2023-06-22

Applicant: SK On Co., Ltd.

Inventor： Eun Jun Park ,  Gwi Ok Park ,  Hyo Shik Kil ,  In Ae Lee

IPC: H01M4/38 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/04 ,  H01M4/02

CPC classification number: H01M4/386 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1395 ,  H01M10/0525 ,  H01M2004/027

Abstract: Provided are a negative electrode for a lithium secondary battery and a method of manufacturing the same. The negative electrode for a lithium secondary battery according to an embodiment of the present invention includes a negative electrode active material including: a silicon oxide, lithium, and sodium or potassium, wherein in ICP analysis of a negative electrode active material layer including the negative electrode active material, contents of elements in the negative electrode active material layer satisfy the following Relations (1) and (2):

300≤106*A/(B2+C2)≤12.0*106  (1)

800≤A≤140,000  (2)



wherein A is a Li content in ppm, B is a Na content in ppm, and C is a K content in ppm, based on the total weight of the ICP-analyzed negative electrode active material layer.

公开(公告)号：US11848439B2

公开(公告)日：2023-12-19

申请号：US17121348

申请日：2020-12-14

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kiyofumi Ogino

IPC: H01M4/134 ,  H01M4/62 ,  H01M4/38 ,  H01M4/1395 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/66

CPC classification number: H01M4/134 ,  H01M4/0404 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/622 ,  H01M4/625 ,  H01M4/661 ,  H01M4/667 ,  H01M10/0525 ,  Y02T10/70

Abstract: A highly reliable electrode for a lithium-ion secondary battery is provided. A highly reliable lithium-ion secondary battery is also provided using the electrode for a lithium-ion secondary battery. The electrode for a lithium-ion secondary battery includes a current collector and an active material layer. The active material layer includes an active material, graphene, and polyimide. The active material includes a plurality of nanowires each of which grows with a silicon particle used as a nucleus and extends in one direction into a fine needle. The graphene includes a region in contact with the plurality of nanowires, and polyimide includes a region in contact with the graphene. The lithium-ion secondary battery uses the electrode as a negative electrode.

公开(公告)号：US11843109B2

公开(公告)日：2023-12-12

申请号：US16426228

申请日：2019-05-30

Applicant: II-VI Delaware, Inc.

Inventor： Yu-Guo Guo ,  Shuaifeng Zhang ,  Yaxia Yin

IPC: H01M4/134 ,  H01M4/38 ,  H01M4/1395 ,  H01M10/052 ,  H01M4/36 ,  H01M4/62 ,  H01M4/58 ,  H01M50/429

CPC classification number: H01M4/134 ,  H01M4/1395 ,  H01M4/362 ,  H01M4/38 ,  H01M4/625 ,  H01M4/581 ,  H01M10/052 ,  H01M50/429

Abstract: The present invention discloses a preparation method to make lithium selenium secondary battery cathode materials with a high energy density and stable electrochemical performances. Two dimensional carbon materials prepared from the presently-disclosed method is not only made from readily-available low-cost raw materials, but is also of simple preparation method. It can effectively shorten the migration distance of lithium ions in the charging and discharging process and improve conductivity and utilization of selenium after compounded with carbon and selenium; the selenium carbon cathode material can be assembled into lithium selenium secondary batteries with high energy density and stable electrochemical performances. By further scaling up, the assembled lithium selenium pouch-cell batteries still hold excellent electrochemical performances and high energy density, showing broad application prospects.

公开(公告)号：US11831021B2

公开(公告)日：2023-11-28

申请号：US16741434

申请日：2020-01-13

Applicant: UCHICAGO ARGONNE, LLC

Inventor： Jeffrey W. Elam ,  Lin Chen

IPC: H01M4/62 ,  H01M4/36 ,  H01M4/38 ,  C23C16/455 ,  C23C16/22 ,  H01M4/1395 ,  H01M4/04 ,  C23C16/40 ,  H01M10/42 ,  C23C16/30 ,  H01M4/134 ,  H01M4/02 ,  B05D7/00

CPC classification number: H01M4/628 ,  C23C16/22 ,  C23C16/30 ,  C23C16/403 ,  C23C16/45527 ,  C23C16/45553 ,  H01M4/0423 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/382 ,  H01M10/4235 ,  B05D7/50 ,  B05D7/56 ,  C23C16/40 ,  H01M2004/027

Abstract: A hybrid protective coating includes an inorganic component and an organic component such that the inorganic component includes at least one of a metal oxide, a metal fluoride, or combination thereof, and the organic component includes at least one metalcone.

公开(公告)号：US20230343940A1

公开(公告)日：2023-10-26

申请号：US17924440

申请日：2021-04-29

Applicant: SAFT

Inventor： Philippe BOREL ,  Maeva GAZZIERO ,  Delphin LEVASSEUR ,  Julien BREGER ,  Ekaterina PAVLENKO ,  Olivier HUCHET ,  Sylvie HERREYRE

IPC: H01M4/38 ,  H01M4/06 ,  H01M4/12 ,  H01M4/134 ,  H01M4/1395 ,  B23K26/38

CPC classification number: H01M4/382 ,  H01M4/06 ,  H01M4/12 ,  H01M4/134 ,  H01M4/1395 ,  B23K26/38

Abstract: A method for treating a surface of a strip or film, the strip or film being made of lithium or a lithium-based alloy, the method comprising a step of radiating at least one portion of the surface of the strip or film with a laser beam, the radiating step being carried out in a controlled atmosphere, the laser beam radiating the entire area of the at least one portion of the surface of the strip or film.

公开(公告)号：US11799085B2

公开(公告)日：2023-10-24

申请号：US17252080

申请日：2019-09-11

Applicant: LG CHEM, LTD.

Inventor： Oh Byong Chae ,  Sang Wook Woo ,  Ye Ri Kim

IPC: H01M4/587 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0525 ,  H01M10/0567 ,  H01M4/02

CPC classification number: H01M4/587 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2004/027 ,  H01M2004/028

Abstract: A method of manufacturing a negative electrode for a lithium secondary battery, the method includes forming a negative electrode active material layer on a negative electrode current collector to manufacture a negative electrode assembly, and pre-lithiating the negative electrode assembly. The pre-lithiating of the negative electrode assembly includes a first pre-lithiation step of performing pre-lithiation by impregnating the negative electrode assembly with a first pre-lithiation solution and a second pre-lithiation step of performing pre-lithiation by impregnating the negative electrode assembly with a second pre-lithiation solution after the first pre-lithiation step. The first pre-lithiation solution includes an ionizable first lithium salt, a first organic solvent, and a first additive. The second pre-lithiation solution includes an ionizable second lithium salt, a second organic solvent, and a second additive.

公开(公告)号：US11799076B2

公开(公告)日：2023-10-24

申请号：US17210824

申请日：2021-03-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Mitsutoshi Otaki ,  Jun Yoshida ,  Kazuhiro Suzuki ,  Masanori Harata

IPC: H01M4/00 ,  C01B33/00 ,  H01B1/04 ,  H01M4/38 ,  C01B33/021 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/36 ,  H01M10/0525 ,  H01M10/44

CPC classification number: H01M4/386 ,  C01B33/021 ,  H01B1/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M10/0525 ,  H01M10/44 ,  C01P2002/74

Abstract: A main object of the present disclosure is to provide an active material wherein a volume variation due to charge/discharge is small. The present disclosure achieves the object by providing an active material comprising a silicon clathrate II type crystal phase, including a void inside a primary particle, and a void amount of the void with a fine pore diameter of 100 nm or less is 0.05 cc/g or more and 0.15 cc/g or less.

公开(公告)号：US11799066B2

公开(公告)日：2023-10-24

申请号：US17041233

申请日：2019-04-01

Applicant: LG Chem, Ltd.

Inventor： Tae Gu Yoo ,  Young Uk Park ,  Jin Tae Hwang ,  Wang Mo Jung ,  Sung Bin Park

IPC: H01M4/131 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/131 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/364 ,  H01M4/366 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028

Abstract: A positive electrode active material includes a lithium transition metal oxide, which is doped with doping element M2, wherein M2 is at least one selected from the group consisting of Al, Ti, Mg, Zr, W, Y, Sr, Co, F, Si, Na, Cu, Fe, Ca, S, and B, and contains nickel in an amount of 60 mol % or more based on a total number of moles of transition metals excluding lithium, wherein the lithium transition metal oxide has a single particle form, and includes a center portion having a layered structure and a surface portion having a rock-salt structure, and the doping element M2 is included in an amount of 3,580 ppm to 7,620 ppm based on a total weight of the positive electrode active material.