Method of manufacturing a battery including a positive electrode, a negative electrode and an electrolyte layer
AssigneeSony Corporation
InventorsTakanobu Yoshino, Tsuyoshi Sugiyama
Life of this patent
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Abstract
To provide a method of manufacturing a battery capable of enhancing productivity and preventing deterioration of the battery performance. After attaching a positive electrode terminal to a belt-shaped electrode, electrolyte layers are formed. This can decrease the number of manufacturing processes after forming electrolyte layers, which effectively prevents that solvents in the electrolyte evaporates or the electrolyte layers are absorbed the water. Thereby, manufacturing yields of the battery can be enhanced, Additionally, a battery excellent in discharge capabilities and stable in voltage can be attained.
Claims15
A method of manufacturing a battery including a positive electrode, a negative electrode and an electrolyte layer, wherein a terminal is attached to one face of at least either the positive electrode or the negative electrode, comprises:
- (a) intermittently forming an electrode mixture layer including electrode active material on an electrode collector in at least one electrode of either the belt-shaped positive or the belt-shaped negative electrode;
- (b) attaching the terminal to an electrode collector exposed region where the electrode mixture layer is unformed;
- (c) forming the electrolyte layer on at least a region where the electrode mixture layer is formed;
- (d) forming the electrolyte layer by delivering electrolyte with an electrolyte-delivering machine having a pressurization means;
- and
- (e) cutting the electrode collector between the electrode mixture layer which is intermittently formed.
A method of manufacturing a battery comprising:
- (a) forming an electrode mixture layer including electrode active material on a first region but not on an exposed region of an electrode collector wherein the first region is formed with an electrolyte layer, and wherein the electrode collector is cut between the electrode mixture layer which is intermittently formed;
- (b) attaching a terminal to the exposed region, wherein the electrode mixture layer is not formed on the exposed region between the attaching of the terminal and the forming of the electrode mixture layer;
- and
- (c) disposing a protection tape in a manner of covering a part of the terminal after the terminal is attached to the electrode collector exposed region.
Dependencies are inferred from the claim text.