Secondary batteries
JP7877392B2Active Publication Date: 2026-06-22SEMICON ENERGY LAB CO LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- SEMICON ENERGY LAB CO LTD
- Filing Date
- 2024-06-14
- Publication Date
- 2026-06-22
AI Technical Summary
Technical Problem
Existing conductive aids in lithium-ion batteries, such as acetylene black and natural graphite, lead to high contact resistance and uneven distribution of active material, reducing battery capacity and conductivity.
Method used
A positive electrode for non-aqueous secondary batteries using a layered rock salt-type active material with graphene oxide dispersed in a polar solvent, forming a highly conductive active material layer by reducing graphene oxide on a current collector.
Benefits of technology
The solution provides a highly conductive active material layer with increased density and capacity per unit area, enhancing the performance of non-aqueous secondary batteries.
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Smart Images
Figure 0007877392000001 
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Abstract
To provide a positive electrode for a non-aqueous secondary battery including an active material layer with a high electron conductivity by a small amount of conductive additive, and a positive electrode for a non-aqueous secondary battery including an active material layer with a high filling amount and high density by a small amount of conductive additive.SOLUTION: The present invention includes: a plurality of active materials having a layer-like rock salt type structure; and an active material layer including a plurality of graphenes, a graphene in surface contact with a plurality of active materials, and a binder on a collector.SELECTED DRAWING: Figure 1
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Citation Information
Patent Citations
JP2002110162A
JP2004080019A
JP2005135723A
JP2006004739A
JP2009511415A