摘要:
The present invention provides a method for manufacturing a battery electrode. This method comprises the steps of applying a binder solution 50 that contains a binder 54 and is adjusted so that the contact angle of the binder solution 50 with the surface of a current collector 10 is 73° or less, to form a binder solution layer 56; applying a mixed material paste 40 containing an active material 22 on top of the binder solution layer 56, to deposit both the binder solution layer 56 and a mixed material paste layer 46 on the current collector 10; and obtaining an electrode 30 in which a mixed material layer 20 is formed on the current collector 10, by drying the deposited binder solution layer 56 and mixed material paste layer 46 together.
摘要:
The method for manufacturing a lithium ion secondary battery includes a binder coating step (18), a mixture supplying step (20), a magnetic field applying step (22), and a convection generating step (24). The binder coating step (18) is a step of coating a slurry-form binder (18a) on a metal foil (12a) (collector). The mixture supplying step (20) is a step of supplying a negative electrode mixture containing graphite so as to be superposed on the slurry-form binder (18a) coated on the metal foil (12a) in the binder coating step (18). The magnetic field applying step (22) is a step of applying a magnetic field having magnetic lines of force pointing in the direction orthogonal to the metal foil (12a), to the negative electrode mixture (20a) coated on the metal foil (12a) in the mixture supplying step (20). Further, the convection generating step (24) is a step of generating convection in the negative electrode mixture (20a) by applying heat to the negative electrode mixture (20a) to which a magnetic field has been applied in the magnetic field applying step (22).
摘要:
The method for manufacturing a lithium ion secondary battery includes a binder coating step (18), a mixture supplying step (20), a magnetic field applying step (22), and a convection generating step (24). The binder coating step (18) is a step of coating a slurry-form binder (18a) on a metal foil (12a) (collector). The mixture supplying step (20) is a step of supplying a negative electrode mixture containing graphite so as to be superposed on the slurry-form binder (18a) coated on the metal foil (12a) in the binder coating step (18). The magnetic field applying step (22) is a step of applying a magnetic field having magnetic lines of force pointing in the direction orthogonal to the metal foil (12a), to the negative electrode mixture (20a) coated on the metal foil (12a) in the mixture supplying step (20). Further, the convection generating step (24) is a step of generating convection in the negative electrode mixture (20a) by applying heat to the negative electrode mixture (20a) to which a magnetic field has been applied in the magnetic field applying step (22).
摘要:
A method is provided for producing a battery electrode having a configuration in which a compound material layer containing an active material and a binder is retained on a current collector. This method includes forming protrusions composed of a polymer on a surface of the current collector, forming a binder solution layer by coating a binder solution containing the binder over the polymer protrusions onto the current collector, depositing the binder solution layer and a compound material paste layer on the current collector by applying a compound material paste containing the active material over the binder solution layer, and obtaining an electrode in which the compound material layer is formed on the current collector by drying both the deposited binder solution layer and compound material paste layer.
摘要:
The method for manufacturing a lithium ion secondary battery includes a binder coating step (18), a mixture supplying step (20), a magnetic field applying step (22), and a convection generating step (24). The binder coating step (18) is a step of coating a slurry-form binder (18a) on a metal foil (12a) (collector). The mixture supplying step (20) is a step of supplying a negative electrode mixture containing graphite so as to be superposed on the slurry-form binder (18a) coated on the metal foil (12a) in the binder coating step (18). The magnetic field applying step (22) is a step of applying a magnetic field having magnetic lines of force pointing in the direction orthogonal to the metal foil (12a), to the negative electrode mixture (20a) coated on the metal foil (12a) in the mixture supplying step (20). Further, the convection generating step (24) is a step of generating convection in the negative electrode mixture (20a) by applying heat to the negative electrode mixture (20a) to which a magnetic field has been applied in the magnetic field applying step (22).
摘要:
The present invention provides a method for manufacturing a battery electrode. This method comprises the steps of applying a binder solution 50 that contains a binder 54 and is adjusted so that the contact angle of the binder solution 50 with the surface of a current collector 10 is 73° or less, to form a binder solution layer 56; applying a mixed material paste 40 containing an active material 22 on top of the binder solution layer 56, to deposit both the binder solution layer 56 and a mixed material paste layer 46 on the current collector 10; and obtaining an electrode 30 in which a mixed material layer 20 is formed on the current collector 10, by drying the deposited binder solution layer 56 and mixed material paste layer 46 together.
摘要:
According to the present invention, formation of a compound material layer is carried out by a method that includes a step of forming a binder solution layer 56 by applying a binder solution 50 containing a binder 54 to a current collector 10, a step of depositing the binder solution layer 56 and a compound material paste layer 46 on the current collector 10 by applying a compound material paste 40 over the binder solution layer 56, and a step of obtaining an electrode in which the compound material layer is formed on the current collector 10 by drying both the binder solution layer 56 and the compound material paste layer 46. Here, the binder solution 56 has a binder solution non-coated region 58 where a surface 12 of the current collector 10 is exposed, and the drying is carried out in a state in which a portion of the compound material paste layer 46 is deposited on the current collector 10 in the binder solution non-coated region 58.
摘要:
The present invention provides a method for producing a battery electrode having a configuration in which a compound material layer containing an active material 22 and a binder 54 is retained on a current collector 10. This method includes a step of forming protrusions 64 composed of a polymer on a surface of the current collector 10, a step of forming a binder solution layer 56 by coating a binder solution 50 containing the binder 54 over the polymer protrusions 64 onto the current collector 10, a step of depositing the binder solution layer 56 and a compound material paste layer 46 on the current collector 10 by applying a compound material paste 40 containing the active material 22 over the binder solution layer 56, and a step of obtaining an electrode in which the compound material layer is formed on the current collector 10 by drying both the deposited binder solution layer 56 and compound material paste layer 46.
摘要:
According to the present invention, provided is a method for producing a battery electrode employing a configuration in which a compound material layer containing an active material 22 and a binder 54 is retained on a current collector 10. The formation of the compound material layer is carried out by a method including: a step of forming a binder solution layer 56 by applying a binder solution 50 containing the first binder 54 to the current collector 10; a step of depositing the binder solution layer 56 and a compound material paste layer 46 on the current collector 10 by applying the compound material paste 40 over the binder solution layer 56; and a step of obtaining an electrode in which the compound material layer is formed on the current collector 10 by drying both the binder solution layer 56 and the compound material paste 40.
摘要:
According to the present invention, provided is a method for producing a battery electrode employing a configuration in which a compound material layer containing an active material 22 and a binder 54 is retained on a current collector 10. The formation of the compound material layer is carried out by a method including: a step of forming a binder solution layer 56 by applying a binder solution 50 containing the first binder 54 to the current collector 10; a step of depositing the binder solution layer 56 and a compound material paste layer 46 on the current collector 10 by applying the compound material paste 40 over the binder solution layer 56; and a step of obtaining an electrode in which the compound material layer is formed on the current collector 10 by drying both the binder solution layer 56 and the compound material paste 40.