Production method of electrode for secondary battery, electrode for secondary battery, and secondary battery
AssigneeNEC Energy Devices, Ltd.
InventorTetsuya SATO
Life of this patent
Estimating the term…
Abstract
The present invention relates to a production method of an electrode for a secondary battery which has an electrode laminated assembly that has a configuration in which electrodes and a separator are laminated. An insulating member is formed on border portion (4) between an application portion and a non-application portion by attaching insulating solution (40a) which contains a solid insulating material to border portion (4) and then solidifying the insulating solution (40a).
Claims11
A production method of an electrode for a secondary battery, the secondary battery having an electrode laminated assembly that has a configuration in which electrodes and a separator are laminated,
- each of the electrodes including an application portion and a non-application portion, the application portion being a portion where an active material layer is formed on a current collector, the non-application portion being a portion where the active material layer is not formed on the current collector,
- the production method comprising forming an insulating member on a border portion between the application portion and the non-application portion by attaching an insulating solution to the border portion and then solidifying the insulating solution, the insulating solution containing a solid insulating material, and
- a particle diameter of the solid insulating material being 50 nm to 500 nm.
An electrode for a secondary battery comprising:
- a current collector;
- an active material layer that is formed on a part of said current collector;
- and
- an insulating member that results from attaching an insulating solution to a border portion between an application portion and a non-application portion and then solidifying the insulating solution, the insulating solution containing a solid insulating material, the application portion being a portion where said active material layer is formed on said current collector, the non-application portion being a portion where said active material layer is not formed on said current collector, and
- a particle diameter of the solid insulating material being 50 nm to 500 nm.
Dependencies are inferred from the claim text.