Battery active material manufacturing method and product

Agglomerating graphite anode materials using lignin and plant-derived carbohydrates addresses environmental and cost issues in synthetic graphite production, resulting in efficient and stable anode materials for batteries.

JP2025527630APending Publication Date: 2025-08-22NOVONIX ANODE MATERIALS LLC
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Patent Information

Application Number
JP2025511331
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-05-30
Filing Date
2023-08-15
Publication Date
2025-08-22

AI Technical Summary

Technical Problem

Existing methods for producing synthetic graphite anode materials for batteries are not environmentally friendly, require specialized equipment, and are costly, using hazardous chemicals that pose environmental risks and inefficiencies.

Method used

The use of agglomeration solutions composed of organic molecules like lignin and plant-derived carbohydrates to agglomerate primary particles into secondary particles, which are then carbonized and graphitized, producing anode materials suitable for lithium-ion and sodium-ion batteries, without the need for specialized equipment or harmful chemicals.

Benefits of technology

This method results in cost-effective, environmentally friendly, and electrochemically stable anode materials with improved lithium or sodium ion storage capacity, enhancing battery performance and manufacturability.

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Abstract

The present disclosure relates to the preparation and composition of active materials that can be used in battery anodes. The active materials can be composed of natural graphite or graphitizable primary particles that are agglomerated into secondary particles using an agglomeration solution. The resulting secondary particles can be carbonized and graphitized prior to use as the battery active material.
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Citation Information

Patent Citations

  • Negative electrode for lithium ion battery

    JP2017054677A

  • Amorphous Carbon Coating of Carbonaceous Particles from a Dispersion Containing an Amphiphilic Organic Compound

    JP2017513793A

  • Sodium-ion secondary battery negative electrode material, its manufacturing method, and uses

    JP2018527713A

  • Negative electrode active material for lithium secondary battery, manufacturing method thereof, negative electrode including the same, and lithium secondary battery including the same

    JP2020043069A

  • Spherical carbon particle having nitrogen element, production method thereof, electrode, and battery

    JP2021116198A