Electrode precursor composition
AssigneeDyson Technology Limited
InventorsDaniel Stephen MACPHERSON, Duncan Clifford Alan SMITH, Steven ROBSON, Alex MADSEN
Life of this patent
Estimating the term…
Abstract
An electrode precursor composition for an alkali metal ion secondary cell is described. The composition includes a polymer-solvent gel matrix phase and a dispersed phase containing an electrochemically active material. The electrochemically active material has a multimodal particle size distribution having a D150/D250 in the range 2 to 15. The electrode precursor composition can be processed into an electrode for an alkali metal ion secondary cell, for example a lithium ion secondary cell.
Claims23
An electrode precursor composition for an alkali metal ion secondary cell comprising:
- a polymer-solvent gel matrix phase;
- and
- a dispersed phase comprising an electrochemically active material;
- wherein the electrochemically active material has a multimodal particle size distribution having a D150/D250 in the range 2 to 15;
- wherein D150 is a volumetric median particle size of a first particle mode within the distribution and D250 is a volumetric median particle size of a second particle mode within the distribution.
(canceled)
An electrode for an alkali metal ion secondary cell comprising:
- a polymer-solvent gel matrix phase;
- and
- a dispersed phase comprising an electrochemically active material;
- wherein the electrochemically active material has a multimodal particle size distribution having a D150/D250 in range 2 to 15;
- wherein D150 is a volumetric median particle size of a first particle mode within the distribution and D250 is a volumetric median particle size of a second particle mode within the distribution.
19-22. (canceled)
26-27. (canceled)
Dependencies are inferred from the claim text.