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公开(公告)号:US20240282920A1
公开(公告)日:2024-08-22
申请号:US18644696
申请日:2024-04-24
Applicant: Ningde Amperex Technology Limited
Inventor: Molin ZHOU
IPC: H01M4/36 , H01M4/02 , H01M4/1315 , H01M4/525 , H01M4/58 , H01M10/0525 , H01M10/0567
CPC classification number: H01M4/364 , H01M4/1315 , H01M4/525 , H01M4/5825 , H01M10/0525 , H01M10/0567 , H01M2004/021 , H01M2004/028
Abstract: A lithium-ion secondary battery includes a positive electrode plate, a negative electrode plate, a separator, and an electrolyte solution. The positive electrode plate includes a positive current collector and a positive electrode material layer disposed on at least one surface of the positive current collector. The positive electrode material layer includes a first positive electrode material having formula Li1+xFeyMnzM1-y-zPO4-tAt and a second positive electrode material having formula Li2+rNi0.5-qCu0.5-qTivNp+q-vO2-sBs. The electrolyte solution includes vinylene carbonate. A content of the vinylene carbonate based on a total mass of the electrolyte solution is 0.1 wt % to 5 wt %. M includes one or more of Ti, Zr, V, or Cr; A includes one or more of S, N, F, Cl, or Br; −0.1≤x
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公开(公告)号:US20240274796A1
公开(公告)日:2024-08-15
申请号:US18645907
申请日:2024-04-25
Applicant: Ningde Amperex Technology Limited
Inventor: Molin ZHOU
IPC: H01M4/36 , H01M4/02 , H01M4/131 , H01M4/136 , H01M4/505 , H01M4/58 , H01M10/0525 , H01M10/0567
CPC classification number: H01M4/364 , H01M4/131 , H01M4/136 , H01M4/505 , H01M4/5825 , H01M10/0525 , H01M10/0567 , H01M2004/021 , H01M2004/028
Abstract: An electrochemical apparatus includes a positive electrode, a negative electrode, a separator, and an electrolyte. The positive electrode includes a first positive electrode material and a second positive electrode material. The first positive electrode material has good cycling stability and high initial coulombic efficiency, and the second positive electrode material has a high specific capacity and low initial coulombic efficiency during the first charge. This can compensate for the active lithium loss caused by the formation of SEI.
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3.
公开(公告)号:US20220223878A1
公开(公告)日:2022-07-14
申请号:US17708089
申请日:2022-03-30
Applicant: Ningde Amperex Technology Limited
Inventor: Molin ZHOU
IPC: H01M4/62 , H01M4/525 , H01M4/505 , H01M10/0525
Abstract: The present application relates to a positive electrode and an electrochemical apparatus and an electronic apparatus containing the same. The positive electrode includes a conductive agent, where the conductive agent includes a non-carbon material. The present application provides a positive electrode that includes a conductive agent with high voltage and oxidization resistance, which can effectively improve high voltage cycle performance of the electrochemical apparatus.
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公开(公告)号:US20240282960A1
公开(公告)日:2024-08-22
申请号:US18645924
申请日:2024-04-25
Applicant: Ningde Amperex Technology Limited
Inventor: Molin ZHOU
IPC: H01M4/525 , H01M4/02 , H01M10/0525 , H01M10/0567
CPC classification number: H01M4/525 , H01M10/0525 , H01M10/0567 , H01M2004/021 , H01M2004/028 , H01M2300/004
Abstract: An electrochemical device includes a positive electrode, a negative electrode, a separator, and an electrolyte solution. The positive electrode includes a positive active material layer. The positive active material layer includes a positive active material represented by Formula (1): Li1+rNi1−p−qM1pM2qO2−sM3s Formula (1). In Formula (1), 0
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公开(公告)号:US20200235421A1
公开(公告)日:2020-07-23
申请号:US16443071
申请日:2019-06-17
Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED
Inventor: Molin ZHOU , Leimin XU , Jianming ZHENG , Jianli GAI
IPC: H01M10/0562 , H01M10/0525 , C01G17/00
Abstract: Embodiments of the present application relate to a solid electrolyte and a preparation method thereof, and an electrochemical device and an electronic device comprising the solid electrolyte. The solid electrolyte comprises a lithium-containing transition metal sulfide being represented by the chemical formula of Li2−2a+bCd1+aMcGe1−dS4, where M is selected from the group consisting of Al, Ga, In, Si, Sn and a combination thereof, wherein 0
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公开(公告)号:US20250023016A1
公开(公告)日:2025-01-16
申请号:US18901460
申请日:2024-09-30
Applicant: Ningde Amperex Technology Limited
Inventor: Molin ZHOU
Abstract: An electrochemical apparatus, including a positive electrode plate, where the positive electrode plate includes a positive electrode active material layer, and the positive electrode active material layer includes a first material and a second material; and in a fully charged state of the electrochemical apparatus, a diffraction peak A1 of (111) crystal plane of the first material and a diffraction peak B1 of (003) crystal plane of the second material are present within a range of 18° to 20° in an XRD diffraction pattern of the positive electrode plate.
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公开(公告)号:US20240282949A1
公开(公告)日:2024-08-22
申请号:US18644652
申请日:2024-04-24
Applicant: Ningde Amperex Technology Limited
Inventor: Molin ZHOU
IPC: H01M4/505 , H01M4/02 , H01M4/131 , H01M10/0525 , H01M10/0567
CPC classification number: H01M4/505 , H01M4/131 , H01M10/0525 , H01M10/0567 , H01M2004/021 , H01M2004/028
Abstract: A positive electrode plate includes a positive electrode current collector and a positive electrode active material layer disposed on at least one surface of the positive electrode current collector. The positive electrode active material layer includes a first positive electrode active material Li1+xMnyM2-yO4-tAt and a second positive electrode lithiation material Li1+rMn1-pNpO2-sBs. The positive electrode plate satisfies 1.5≤R·P/Q≤30, where R represents resistance of the positive electrode plate in Ω; P represents compacted density of the positive electrode plate in g/cm3; and Q represents single-sided surface density of the positive electrode plate in g/1540.25 mm2.
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公开(公告)号:US20220216471A1
公开(公告)日:2022-07-07
申请号:US17700886
申请日:2022-03-22
Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED
Inventor: Molin ZHOU
Abstract: A lithium supplementing material includes Li5MO4 and a semiconductor oxide on a surface thereof, where M includes at least one of Fe, Ni, Mn, Ru, Cr, Cu, Nb, Al, or Mo. In this application, the lithium supplementing material containing the semiconductor oxide is used, which can significantly enhance electronic conductance of the lithium supplementing material, reduce polarization, and greatly improve a specific charge capacity of the lithium supplementing material. Applying the lithium supplementing material to a positive electrode of an electrochemical apparatus can effectively increase an energy density of the electrochemical apparatus, and also improve rate performance and cycle stability.
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9.
公开(公告)号:US20200295399A1
公开(公告)日:2020-09-17
申请号:US16458510
申请日:2019-07-01
Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED
Inventor: Molin ZHOU , Feng GU , Leimin XU , Jianming ZHENG
IPC: H01M10/0562 , C01B17/42 , C01B17/22
Abstract: Embodiments of the present application relate to a solid electrolyte and a preparation method thereof, and an electrochemical device and an electronic device comprising the same. The solid electrolyte of the present application includes a solid electrolyte material being represented by the chemical formula of Li1+2x−2yMyGa2+xP1−xS6, where M is selected from the group consisting of Sr, Ba, Zn, Cd and a combination thereof, 0≤x≤0.2 and 0≤y≤0.05. Embodiments of the present application provides a solid electrolyte having good stability with lithium and ionic conductivity by forming the solid electrolyte using lower cost solid electrolyte materials and optimizing the material composition and a crystal structure thereof. At the same time, this also reduces the manufacturing costs of the solid electrolyte, and improves the structural stability of the solid electrolyte.
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公开(公告)号:US20240313215A1
公开(公告)日:2024-09-19
申请号:US18645899
申请日:2024-04-25
Applicant: Ningde Amperex Technology Limited
Inventor: Molin ZHOU
IPC: H01M4/525 , H01M4/02 , H01M4/04 , H01M4/131 , H01M4/1391 , H01M10/0525 , H01M10/0567
CPC classification number: H01M4/525 , H01M4/0497 , H01M4/131 , H01M4/1391 , H01M10/0525 , H01M10/0567 , H01M2004/028
Abstract: A positive electrode includes a first positive electrode material and a second material. The first positive electrode material includes Li1+xCo1−yM1yO2−-tAt, in which M1 includes Ni, Mn, Al, Mg, Ti, Zr, La, Y, Fe, Cr, V, Zn, Ru, Rh, Ga, Pd, Pt, Mo, W, Sb, Nb, Se, Te, and/or Ce; A includes S, N, F, Cl, and/or Br; −0.1≤x≤0.2, 0≤y≤0.2, and 0≤t≤0.2. The second material includes Li1+rNi1−p−qM2pM3qO2−sDs and a phase B belonging to an F-3m1 space group. M2 and M3 independently include Co, Mn, Fe, Ti, Al, V, Cr, Nb, Zr, La, and/or Y. M2 and M3 are different elements. D includes S, N, F, Cl, and/or Br; 0
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