Electrode material
By controlling the moisture content of niobium-titanium oxide electrodes between 2,000 ppm and 10,000 ppm and using carboxymethylcellulose, the electrode material's bending strength is enhanced, reducing defects and maintaining high energy density while preventing self-discharge.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- KK TOSHIBA
- Filing Date
- 2022-06-20
- Publication Date
- 2026-05-25
AI Technical Summary
The niobium titanium-based oxide electrodes tend to crack and become hard when the electrode density is increased, leading to defects such as cracking, chipping, and peeling during handling, which reduces the battery's energy density and increases self-discharge.
The electrode material is formulated with a moisture content between 2,000 ppm and 10,000 ppm, using niobium-titanium oxide and titanium dioxide, along with a binder like carboxymethylcellulose, to maintain bending strength and prevent cracking, chipping, and peeling, while ensuring high density and reduced self-discharge.
The solution improves the bending strength of the electrode material, reduces defects during handling, and maintains high energy density by controlling moisture content, thereby suppressing self-discharge.
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