Non-aqueous electrolyte power storage device and method for manufacturing non-aqueous electrolytic power storage device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKento HOSOE, Shinsuke MATSUHARA
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Abstract
A method for manufacturing a non-aqueous electrolytic power storage device includes preparing a mixture paste in which an active material particle, a binder, and carboxymethylcellulose are mixed in an aqueous solvent, applying the mixture paste to a current collector, and drying the applied mixture paste. Here, a proportion of carboxymethylcellulose having an etherification degree of 40 mol/C6 or less is 0.5 wt % or more in terms of a solid content fraction in the mixture paste.
Claims7
A method for manufacturing a non-aqueous electrolytic power storage device, the method comprising:
- preparing a mixture paste in which an active material particle, a binder, and carboxymethylcellulose are mixed in an aqueous solvent;
- applying the mixture paste to a current collector;
- and
- drying the mixture paste that is applied to the current collector,
- wherein a proportion of carboxymethylcellulose having an etherification degree of 40 mol/C6 or less is 0.5 wt % or more in terms of a solid content fraction in the mixture paste.
Anon-aqueous electrolytic power storage device comprising an active material layer that contains carboxymethylcellulose having an etherification degree of 40 mol/C6 or less and has pores of 4 μm or more and 106 μm or less per unit area, the pores having 25% or more of a total pore volume.
Dependencies are inferred from the claim text.