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PanasonicPatent grant

Panasonic was granted a patent for a higher-performance battery electrode.

What happened

In September 2026 Panasonic patented a solid-state battery electrode design for improving contact between active materials and the current collector in energy-storage cells.

Source

patents.google.comSep 29, 2026

US patent US12749685

Electrode and battery

Abstract

An electrode includes an active material layer that includes an active material, a solid electrolyte, and a binder and a current collector that includes a substrate and a coating layer coating the substrate and being in contact with the active material layer. The binder includes a block copolymer that includes two first blocks constituted of a repeating unit having an aromatic ring and a second block located between the two first blocks. The weight average molecular weight of the block copolymer is 170,000 or more. The coating layer includes conductive carbon.

patents.google.com/patent/US12749685Read the full source

Extracted by Autobound

From the Signal API record
Signal
Patent grant

What this signalsA new patent often shows where a company is putting its R&D budget.

Grant date
Sep 29, 2026
Inventors
4
Tech area
batteries / energy storage
Patent number
US12749685

The full record

From the Signal API record

People

  • Tatsuya OshimaInventor
  • Seiji NishiyamaInventor
  • Akira KawaseInventor
  • Yusuke NishioInventor

Details

Primary CPC class
H01M 4/622 (Batteries / electrochemical direct conversion of chemical to electrical energy)
USPTO assignee
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
What the invention does
An electrode that uses a specially structured polymer binder to hold battery materials together against a coated current collector.

Topics and mentions

Tags

  • Intellectual Property
  • Research & Development
  • Energy / Power
  • Engineering

Technologies named

  • solid-state batteries
  • battery electrodes
  • polymer binders
  • energy storage

Extraction

Detected
Sep 30, 2026
signal_type
patents-company
signal_subtype
patentGrant

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This page shows a preview. The full patents-company record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/1eb96bcb-f20a-5c8e-883d-026da7f700dc returns this record as JSON. POST /v1/companies/enrich returns every signal for panasonic.com.

{
  "signal_id": "1eb96bcb-f20a-5c8e-883d-026da7f700dc",
  "signal_type": "patents-company",
  "signal_subtype": "patentGrant",
  "detected_at": "2026-09-30T17:30:10+00:00",
  "company": {
    "name": "Panasonic",
    "domain": "panasonic.com"
  },
  "data": {
    "cpc": [
      {
        "code": "H01M 4/622",
        "label": "Batteries / electrochemical direct conversion of chemical to electrical energy"
      },
      {
        "code": "H01M 4/525",
        "label": "Batteries / electrochemical direct conversion of chemical to electrical energy"
      },
      {
        "code": "H01M 4/663",
        "label": "Batteries / electrochemical direct conversion of chemical to electrical energy"
      },
      {
        "code": "H01M 4/667",
        "label": "Batteries / electrochemical direct conversion of chemical to electrical energy"
      },
      {
        "code": "H01M 10/052",
        "label": "Batteries / electrochemical direct conversion of chemical to electrical energy"
      }
    ],
    "tags": [
      "Intellectual Property",
      "Research & Development",
      "Energy / Power",
      "Engineering"
    ],
    "detail": "In September 2026 Panasonic patented a solid-state battery electrode design for improving contact between active materials and the current collector in energy-storage cells.",
    "summary": "Panasonic was granted a patent for a higher-performance battery electrode.",
    "event_at": "2026-09-29",
    "inventors": [
      {
        "name": "Tatsuya Oshima",
        "status": "unresolved",
        "is_primary": true
      },
      {
        "name": "Seiji Nishiyama",
        "status": "unresolved",
        "is_primary": false
      },
      {
        "name": "Akira Kawase",
        "status": "unresolved",
        "is_primary": false
      },
      {
        "name": "Yusuke Nishio",
        "status": "unresolved",
        "is_primary": false
      }
    ],
    "tech_area": "batteries / energy storage",
    "event_kind": "grant_date",
    "grant_date": "2026-09-29",
    "source_url": "https://patents.google.com/patent/US12749685",
    "cpc_primary": {
      "code": "H01M 4/622",
      "label": "Batteries / electrochemical direct conversion of chemical to electrical energy"
    },
    "patent_title": "Electrode and battery",
    "patent_number": "US12749685",
    "uspto_assignee": "PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.",
    "patent_abstract": "An electrode includes an active material layer that includes an active material, a solid electrolyte, and a binder and a current collector that includes a substrate and a coating layer coating the substrate and being in contact with the active material layer. The binder includes a block copolymer that includes two first blocks constituted of a repeating unit having an aromatic ring and a second block located between the two first blocks. The weight average molecular weight of the block copolymer is 170,000 or more. The coating layer includes conductive carbon.",
    "precision_class": "structural",
    "invention_explanation": "An electrode that uses a specially structured polymer binder to hold battery materials together against a coated current collector.",
    "technologies_mentioned": [
      "solid-state batteries",
      "battery electrodes",
      "polymer binders",
      "energy storage"
    ]
  }
}

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