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公开(公告)号：US11508992B2
公开(公告)日：2022-11-22
申请号：US16863679
申请日：2020-04-30
Applicant: Samsung SDI Co., Ltd.
Inventor： Jaehwan Ha , Kijun Kim , Heeeun Yoo , Yeonhee Yoon , Kyuseo Lee , Dongmyung Lee
IPC: H01M4/00 , H01M10/0569 , H01M4/131 , H01M4/36 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/0525 , H01M10/0567 , H01M4/02
Abstract: Rechargeable lithium battery includes a negative electrode including a negative active material layer and a negative electrode functional layer disposed on the negative active material layer; a positive electrode including a positive active material; an electrolyte solution, wherein the negative electrode functional layer includes flake-shaped polyethylene particles, the electrolyte solution includes a lithium salt and a non-aqueous organic solvent, and the non-aqueous organic solvent includes about 60 volume % to about 80 volume % of a propionate-based solvent and about 20 volume % to about 40 volume % of a carbonate-based solvent.
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公开(公告)号：US20200350567A1
公开(公告)日：2020-11-05
申请号：US16864384
申请日：2020-05-01
Applicant: Samsung SDI Co., Ltd.
Inventor： Jaehwan Ha , Kijun Kim , Heeeun Yoo , Yeonhee Yoon , Kyuseo Lee , Dongmyung Lee
Abstract: A rechargeable lithium battery includes a positive electrode having a positive current collector and a positive active material layer at least partially disposed on the positive current collector, wherein the positive active material layer includes a first positive active material having at least one of a composite oxide of a metal selected from cobalt, manganese, nickel, and a combination thereof and lithium, and a second positive active material having a compound represented by Chemical Formula 1 as defined herein, and a negative electrode having a negative current collector, a negative active material layer at least partially disposed on the negative current collector, and a negative electrode functional layer having generally flake-shaped polyethylene particles at least partially disposed on the negative active material layer.
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3.发明授权Binder composition for rechargeable battery and rechargeable lithium battery having the same 有权可充电电池和可充电锂电池的粘结剂组合物公开(公告)号：US09484579B2
公开(公告)日：2016-11-01
申请号：US14149771
申请日：2014-01-07
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Dongho Son , Kijun Kim , Junkyu Cha , Nari Seo
Abstract: A binder composition for a rechargeable battery, including a binder polymer having a glass transition temperature (Tg) of 20° C. or less, and having a storage modulus (60° C.) of 50-150 MPa. The binder composition according to an embodiment can improve life characteristics of the rechargeable battery by efficiently controlling expansion of a negative electrode plate.
Abstract translation: 一种用于可再充电电池的粘合剂组合物，其包含玻璃化转变温度（Tg）为20℃或更低，并且具有50-150MPa的储能模量（60℃）的粘合剂聚合物。 根据实施方案的粘合剂组合物可以通过有效地控制负极板的膨胀来改善可再充电电池的寿命特性。
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公开(公告)号：US11710820B2
公开(公告)日：2023-07-25
申请号：US16864858
申请日：2020-05-01
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Dongmyung Lee , Kijun Kim , Heeeun Yoo , Yeonhee Yoon , Kyuseo Lee , Jaehwan Ha
IPC: H01M4/36 , H01M4/505 , H01M4/525 , H01M4/58 , H01M4/62 , H01M10/0525 , H01M4/02 , H01M50/417
CPC classification number: H01M4/364 , H01M4/366 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/62 , H01M10/0525 , H01M50/417 , H01M2004/021
Abstract: A rechargeable lithium battery including an electrode assembly includes a positive electrode including a positive current collector and a positive active material layer disposed on the positive current collector; a negative electrode including a negative current collector, a negative active material layer disposed on the negative current collector, and a negative electrode functional layer disposed on the negative active material layer; and a separator, wherein the positive active material layer includes a first positive active material including at least one of a composite oxide of metal selected from cobalt, manganese, nickel, and a combination thereof and lithium and a second positive active material including a compound represented by Chemical Formula 1, the negative electrode functional layer includes flake-shaped polyethylene particles, and a battery capacity is greater than or equal to about 3.5 Ah.
LiaFe1−x1Mx1PO4 [Chemical Formula 1]
In Chemical Formula 1, 0.90≤a≤1.8, 0≤x1≤0.7, and M is Mn, Co, Ni, or a combination thereof.-
公开(公告)号：US11515523B2
公开(公告)日：2022-11-29
申请号：US16864384
申请日：2020-05-01
Applicant: Samsung SDI Co., Ltd.
Inventor： Jaehwan Ha , Kijun Kim , Heeeun Yoo , Yeonhee Yoon , Kyuseo Lee , Dongmyung Lee
Abstract: A rechargeable lithium battery includes a positive electrode having a positive current collector and a positive active material layer at least partially disposed on the positive current collector, wherein the positive active material layer includes a first positive active material having at least one of a composite oxide of a metal selected from cobalt, manganese, nickel, and a combination thereof and lithium, and a second positive active material having a compound represented by Chemical Formula 1 as defined herein, and a negative electrode having a negative current collector, a negative active material layer at least partially disposed on the negative current collector, and a negative electrode functional layer having generally flake-shaped polyethylene particles at least partially disposed on the negative active material layer.
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Patent Agency Ranking
公开(公告)号：US11245106B2
公开(公告)日：2022-02-08
申请号：US16376959
申请日：2019-04-05
Applicant: Samsung SDI Co., Ltd.
Inventor： Jaehwan Ha , Kijun Kim , Junghyun Nam , Hoon Seok , Heeeun Yoo , Yeonhee Yoon , Kyuseo Lee , Bokkyu Jeon
IPC: H01M4/131 , H01M10/0585 , H01M10/0587 , H01M4/1391 , H01M4/36 , H01M4/525 , H01M4/58 , H01M4/133 , H01M4/02
Abstract: An electrode assembly and a rechargeable battery including the same are disclosed. The electrode assembly includes a plurality of unit cells overlapping in a thickness direction of the plurality of unit cells and a functional unit cell disposed with the plurality of unit cells. The functional unit cell includes a positive electrode. The positive electrode includes a positive current collector, a positive active material layer on at least one surface of the positive current collector and including a positive active material having a first reference potential, and a functional layer on the positive active material layer and including an active material having a lower reference potential than the first reference potential.
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公开(公告)号：US20200350566A1
公开(公告)日：2020-11-05
申请号：US16862866
申请日：2020-04-30
Applicant: Samsung SDI Co., Ltd.
Inventor： Jaehwan HA , Kijun Kim , Junghyun Nam , Hoyong An , Heeeun Yoo , Yeonhee Yoon , Kyuseo Lee , Dongmyung Lee , Seung-Hun Han
Abstract: A rechargeable lithium battery includes a negative electrode including a negative current collector, a negative active material layer disposed on the negative current collector, and a negative electrode functional layer disposed on the negative active material layer; and positive electrode including a positive current collector and a positive active material layer disposed on the positive current collector, wherein the negative electrode functional layer includes flake-shaped polyethylene particles, the positive active material layer includes a first positive active material including at least one of a composite oxide of a metal selected from cobalt, manganese, nickel, and a combination thereof and lithium, a second positive active material including a compound represented by Chemical Formula 1, and carbon nanotubes, and the carbon nanotubes have an average length of 30 μm to about 100 μm. LiaFe1-x1Mx1PO4 [Chemical Formula 1] In Chemical Formula 1, 0.90≤a≤1.8, 0≤x1≤0.7, and M is Mn, Co, Ni, or a combination thereof.
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公开(公告)号：US11705585B2
公开(公告)日：2023-07-18
申请号：US16460779
申请日：2019-07-02
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Jaehwan Ha , Kijun Kim , Heeeun Yoo , Yeonhee Yoon , Kyuseo Lee
CPC classification number: H01M10/4235 , H01M4/13 , H01M4/525 , H01M4/622 , H01M10/052 , H01M50/46 , H01M2004/021 , H01M2004/028
Abstract: Disclosed is a rechargeable lithium battery including a positive electrode including a positive active material layer; and a negative electrode including a negative active material layer and a negative functional layer on the negative active material layer, wherein the functional layer includes flake-shaped polyethylene particles, and the positive active material layer includes a first positive active material including one or more composite oxides of lithium and a metal selected from cobalt, manganese, nickel, and a combination thereof, and a second positive active material including a compound represented by Chemical Formula 1 and. In Chemical Formula 1, 0.90≤a≤1.8, 0≤x≤0.7, and M is Mg, Co, Ni, or a combination thereof.
LiaFe1−xMxPO4 [Chemical Formula 1]-
公开(公告)号：US11658287B2
公开(公告)日：2023-05-23
申请号：US16862866
申请日：2020-04-30
Applicant: Samsung SDI Co., Ltd.
Inventor： Jaehwan Ha , Kijun Kim , Junghyun Nam , Hoyong An , Heeeun Yoo , Yeonhee Yoon , Kyuseo Lee , Dongmyung Lee , Seung-Hun Han
IPC: H01M4/36 , H01M4/505 , H01M4/525 , H01M4/58 , H01M4/62 , H01M10/0525 , H01M4/02 , H01M50/417
CPC classification number: H01M4/364 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/625 , H01M10/0525 , H01M50/417 , H01M2004/021
Abstract: A rechargeable lithium battery includes a negative electrode including a negative current collector, a negative active material layer disposed on the negative current collector, and a negative electrode functional layer disposed on the negative active material layer; and positive electrode including a positive current collector and a positive active material layer disposed on the positive current collector, wherein the negative electrode functional layer includes flake-shaped polyethylene particles, the positive active material layer includes a first positive active material including at least one of a composite oxide of a metal selected from cobalt, manganese, nickel, and a combination thereof and lithium, a second positive active material including a compound represented by Chemical Formula 1, and carbon nanotubes, and the carbon nanotubes have an average length of 30 μm to about 100 μm.
LiaFe1-x1Mx1PO4 Chemical Formula 1
In Chemical Formula 1, 0.90≤a≤1.8, 0≤x1≤0.7, and M is Mn, Co, Ni, or a combination thereof.-
公开(公告)号：US11522185B2
公开(公告)日：2022-12-06
申请号：US16862638
申请日：2020-04-30
Applicant: Samsung SDI Co., Ltd.
Inventor： Jaehwan Ha , Kijun Kim , Heeeun Yoo , Yeonhee Yoon , Kyuseo Lee , Dongmyung Lee
Abstract: A rechargeable lithium battery includes a positive electrode including a positive current collector and a positive active material layer disposed on the positive current collector; and a negative electrode including a negative current collector, a negative active material layer disposed on the negative current collector, and a negative electrode functional layer disposed on the negative active material layer, wherein the positive active material layer includes a first positive active material including at least one of a composite oxide of metal selected from cobalt, manganese, nickel, and a combination thereof and lithium and a second positive active material including at least one of compounds represented by Chemical Formula 1 to Chemical Formula 4, and the negative electrode functional layer includes flake-shaped polyethylene particles and Lix2Mn1-y2M′y2A2 [Chemical Formula 1] Lix2Mn1-y2M′yO2-z2Xz2 [Chemical Formula 2] Lix2Mn2O4-z2Xz2 [Chemical Formula 3] Lix2Mn2-y2M′y2M″z2A4 [Chemical Formula 4] wherein, 0.9≤x2≤1.1, 0≤y2≤0.5, 0≤z2≤0.5, M′ and M″ are the same or different and are selected from Mg, Al, Co, K, Na, Ca, Si, Ti, Sn, V, Ge, Ga, B, As, Zr, Mn, Cr, Fe, Sr, V, and a rare earth element, and wherein A is selected from O, F, S, and P and X is selected from F, S, and P.
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