Invalidity dossier

US 12015118

Added 6/27/2026, 12:00:53 AM

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Patent summary

Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.

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I am providing a summary of US patent 12015118 based on the provided patent text and will search for CAFC 2026 dockets.

US Patent 12015118: Concise Summary

  • Title: Electrode electrochemical device and electronic device
  • Assignee: Ningde Amperex Technology Ltd
  • Inventors: Chaowang Lin, Fan Yang, Yisong Su, Huawei Zhong, Changming Qu, Xiaozhen Zhang
  • Filing Date: March 29, 2022
  • Issue Date: June 18, 2024
  • Abstract: An electrode includes a current collector, a first active material layer with a first active material, and a second active material layer with a second active material. The first active material layer is situated between the current collector and the second active material layer, formed on the current collector's surface. A particle size of 90% accumulative volume (Dv90) of the first active material is less than 40 μm. This active material layer design aims to prevent internal short circuits in electrochemical devices and electronic devices when subjected to external force, thereby enhancing mechanical safety performance.

Plain-Language Overview of Independent Claims:

  • Claim 1 (Electrode): This claim describes an electrode that features a current collector, a first layer containing a first material, and a second layer containing a second material. The first layer is positioned between the current collector and the second layer, and it's formed on the current collector's surface. A key characteristic is that 90% of the first material's particles (by volume) are smaller than 40 μm. Additionally, the combined compaction density of both the first and second layers must be greater than 3.2 g/cc.

  • Claim 10 (Electrochemical Device): This claim describes an electrochemical device that incorporates the electrode defined in Claim 1. Specifically, it comprises an electrode with a current collector, a first layer with a first material, and a second layer with a second material. The first layer is between the current collector and the second layer, formed on the current collector's surface, and 90% of the first material's particles (by volume) are less than 40 μm. The total compaction density of the first and second layers must exceed 3.2 g/cc.

  • Claim 19 (Electronic Device): This claim describes an electronic device that includes an electrochemical device, which in turn comprises the electrode as defined in Claim 10. The electrode contains a current collector, a first layer with a first material, and a second layer with a second material. The first layer is situated between the current collector and the second layer, formed on the current collector's surface, and has a Dv90 of the first material less than 40 μm. The combined compaction density of the first and second layers is greater than 3.2 g/cc.
    I will now search for CAFC 2026 dockets related to US12015118.
    CAFC 2026 Dockets for US12015118:

My search of general legal databases and the Unified Patents portal indicates that there is pending litigation related to the patent family of US12015118. Specifically, a PTAB case IPR2025-00524 has been filed and is currently in an "Instituted" status. While this is a PTAB (Patent Trial and Appeal Board) case, not directly a CAFC docket, it is highly relevant to the patent's legal status. No direct CAFC 2026 dockets specifically naming "12015118" as an appealed patent number were found in my search. It is possible that an appeal related to the IPR may occur in the future, or that other litigation exists that is not immediately discoverable through the precise "CAFC 2026 dockets 12015118" query. There is also a US case filed in Texas Eastern District Court, case number 2:24-cv-00728. This district court litigation may eventually lead to an appeal at the CAFC, but as of April 26, 2026, it is not listed as a CAFC 2026 docket for this specific patent number.

Uncertainty Note: While the provided patent text from Google Patents indicates "Family has litigation" and lists the Texas Eastern District Court case and PTAB IPR2025-00524, my search for "CAFC 2026 dockets 12015118" did not yield direct results for CAFC cases explicitly referencing this patent number in 2026. The identified litigation is at the district court and PTAB levels, which are lower tribunals that may eventually lead to CAFC appeals. Therefore, there is no authoritative information directly confirming a CAFC 2026 docket for US12015118 at this time.

Generated 6/27/2026, 12:45:31 AM