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公开(公告)号：US20200313186A1
公开(公告)日：2020-10-01
申请号：US16534191
申请日：2019-08-07
Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED
Inventor： Huixin WANG , Silin HUANG , Sheng CHENG , Hongming YU
Abstract: The present application relates to an electrode and an electrochemical device including the electrode. An anode of the present application includes a first anode region and a second anode region, wherein a direct current resistance value RA2 of the second anode region is less than or equal to 98% of a direct current resistance value RA1 of the first anode region. A cathode of the present application includes a first cathode region and a second cathode region, wherein a direct current resistance value RC2 of the second cathode region is greater than a direct current resistance value RC1 of the first cathode region. When the anode and/or the cathode of the present application are/is applied to the electrochemical device, it can effectively reduce the formation of lithium dendrites, thereby improving the safety of the electrochemical device.
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公开(公告)号：US20200313176A1
公开(公告)日：2020-10-01
申请号：US16534326
申请日：2019-08-07
Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED
Inventor： Huixin WANG , Silin HUANG , Sheng CHENG , Hongming YU
IPC: H01M4/38 , H01M4/133 , H01M10/0525
Abstract: The present application relates to an electrode and an electrochemical device including the electrode. The electrode includes a first region and a second region, wherein the electrode includes a substrate and an electrode active material coated on at least one surface of the substrate, and wherein the charge/discharge thickness difference of the electrode in the first region is ΔD1, and the charge/discharge thickness difference of the electrode in the second region is ΔD2, wherein ΔD1 is less than ΔD2. When the electrode of the present application is applied to the electrochemical device, the formation of lithium dendrites can be effectively reduced, and the safety of the electrochemical device can be improved.
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