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公开(公告)号：US20190319300A1
公开(公告)日：2019-10-17
申请号：US16000764
申请日：2018-06-05
Applicant: Ningde Amperex Technology Limited
Inventor： Jianjian Yi , Xinzhi Zhang , Zengbin Wei , Xinghua Tao
Abstract: The application provides a porous film and a lithium-ion battery. The porous film according to the present application has excellent adhesion, and the pore structure of the porous film can still be well maintained after being immersed in the electrolyte, thereby reducing the probability of pore blockage of the porous film and allowing the lithium-ion battery to have high ionic conductivity. Therefore, the rate performance of the lithium-ion battery is greatly improved, and the lithium-ion battery provided has excellent rate performance and cycle performance.
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Patent Agency Ranking
公开(公告)号：US10964987B2
公开(公告)日：2021-03-30
申请号：US16013887
申请日：2018-06-20
Applicant: Ningde Amperex Technology Limited
Inventor： Jianjian Yi , Xinzhi Zhang , Zengbin Wei , Xinghua Tao
IPC: H01M2/16 , H01M2/14 , H01M50/449 , H01M10/0525 , H01M50/403 , H01M50/411 , H01M50/446
Abstract: The application provides a separator and an energy storage device. The separator comprises: a porous substrate; and a porous layer arranged on a surface of the porous substrate, wherein the porous layer comprises inorganic particles and a binder, and a ratio of Dv90 of the inorganic particles to the thickness of the porous layer is in a range from 0.3 to 3.0. Excellent adhesion exists between the separator and the electrode according to the present application, which ensures that the energy storage device has good safety performance. Moreover, the rate performance and cycle performance of the energy storage device can be greatly improved due to the existence of inorganic particles in the separator.
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公开(公告)号：US10833355B2
公开(公告)日：2020-11-10
申请号：US16000764
申请日：2018-06-05
Applicant: Ningde Amperex Technology Limited
Inventor： Jianjian Yi , Xinzhi Zhang , Zengbin Wei , Xinghua Tao
Abstract: The application provides a porous film and a lithium-ion battery. The porous film according to the present application has excellent adhesion, and the pore structure of the porous film can still be well maintained after being immersed in the electrolyte, thereby reducing the probability of pore blockage of the porous film and allowing the lithium-ion battery to have high ionic conductivity. Therefore, the rate performance of the lithium-ion battery is greatly improved, and the lithium-ion battery provided has excellent rate performance and cycle performance.
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公开(公告)号：US20190319243A1
公开(公告)日：2019-10-17
申请号：US16013887
申请日：2018-06-20
Applicant: Ningde Amperex Technology Limited
Inventor： Jianjian Yi , Xinzhi Zhang , Zengbin Wei , Xinghua Tao
IPC: H01M2/16 , H01M10/0525 , H01M2/14
Abstract: The application provides a separator and an energy storage device. The separator comprises: a porous substrate; and a porous layer arranged on a surface of the porous substrate, wherein the porous layer comprises inorganic particles and a binder, and a ratio of Dv90 of the inorganic particles to the thickness of the porous layer is in a range from 0.3 to 3.0. Excellent adhesion exists between the separator and the electrode according to the present application, which ensures that the energy storage device has good safety performance. Moreover, the rate performance and cycle performance of the energy storage device can be greatly improved due to the existence of inorganic particles in the separator.
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公开(公告)号：US11575148B2
公开(公告)日：2023-02-07
申请号：US17061427
申请日：2020-10-01
Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED
Inventor： Jianjian Yi , Xinzhi Zhang , Zengbin Wei , Xinghua Tao
IPC: H01M10/0525 , H01M4/62 , H01M4/583 , H01M4/66 , H01M50/403 , H01M50/409 , H01M4/02
Abstract: A porous film, including a binder and inorganic particles. The porous film includes pores formed by the binder. The pores at least include a part of the inorganic particles. The inorganic particles have particle sizes that Dv10 is in a range of 0.015 μm to 3 μm, Dv50 is in a range of 0.2 μm to 5 μm, and Dv90 is in a range of 1 μm to 10 μm. Dv10 of the inorganic particles is less than Dv50 of the inorganic particles, and Dv50 of the inorganic particles is less than Dv90 of the inorganic particles, and the inorganic particles have particle sizes that the ratio of Dv90 to Dv10 is in a range of 2 to 100.
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公开(公告)号：US20210184315A1
公开(公告)日：2021-06-17
申请号：US17178843
申请日：2021-02-18
Applicant: Ningde Amperex Technology Limited
Inventor： Jianjian Yi , Xinzhi Zhang , Zengbin Wei , Xinghua Tao
IPC: H01M50/449 , H01M10/0525 , H01M50/403 , H01M50/411 , H01M50/446
Abstract: A separator includes a porous substrate, and a porous layer arranged on a surface of the porous substrate. The porous layer comprises inorganic particles and a binder, and a ratio of Dv90 of the inorganic particles to the thickness of the porous layer is in a range from 0.3 to 3.0. Excellent adhesion exists between the separator and the electrode according to the present application, which ensures that the energy storage device has good safety performance. Moreover, the rate performance and cycle performance of the energy storage device can be greatly improved due to the existence of inorganic particles in the separator.
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