Method of producing electrode plate and electrode plate
AssigneeToyota Jidosha Kabushiki Kaisha
InventorNaohisa AKIYAMA
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Abstract
A method of producing an electrode plate includes forming a particle aggregate, forming an undried active material layer, and drying the undried active material layer. When the particle aggregate is formed, conductive particles include first conductive particles which have a three-dimensional structure in which primary particles with an average primary particle size of 30 nm to 80 nm are connected to each other and have an average structure length of 260 nm to 500 nm and second conductive particles which have a three-dimensional structure in which primary particles with an average primary particle size of 8 nm to 13 nm are connected to each other and have an average structure length of 80 nm to 250 nm.
Claims10
A method of producing an electrode plate comprising:
- mixing active material particles, conductive particles and a solvent and granulating to form a particle aggregate including wet particles;
- forming an undried active material layer on a current collector foil using the particle aggregate;
- and
- drying the undried active material layer and forming an active material layer,
- wherein the conductive particles include first conductive particles and second conductive particles, the first conductive particles having a three-dimensional structure in which primary particles with an average primary particle size of 30 nm to 80 nm are connected to each other and having an average structure length of 260 nm to 500 nm, the second conductive particles having a three-dimensional structure in which primary particles with an average primary particle size of 8 nm to 13 nm are connected to each other and having an average structure length of 80 nm to 250 nm.
An electrode plate comprising:
- a current collector foil;
- and
- a dried active material layer formed into a film on the current collector foil using a particle aggregate including wet particles obtained by mixing active material particles, conductive particles, and a solvent, and performing granulating,
- wherein the conductive particles include first conductive particles and second conductive particles, the firs conductive particles having a three-dimensional structure in which primary particles with an average primary particle size of 30 nm to 80 nm are connected to each other and having an average structure length of 260 nm to 500 nm, the second conductive particles having a three-dimensional structure in which primary particles with an average primary particle size of 8 nm to 13 nm are connected to each other, and have an average structure length of 80 nm to 250 nm.
Dependencies are inferred from the claim text.