SECONDARY BATTERY

摘要

A gel electrolyte and a separator are provided between the positive electrode current collector and the negative electrode current collector. The plurality of positive electrode current collectors and the plurality of negative electrode current collectors are stacked such that surfaces of negative electrodes with which active material layers are not coated or surfaces of positive electrodes with which active material layers are not coated are in contact with each other.

主权项

1. A secondary battery comprising:
a first positive electrode current collector; a first negative electrode current collector; a second positive electrode current collector; and a second negative electrode current collector, wherein the first positive electrode current collector includes a positive electrode active material layer on one surface and does not have a positive electrode active material layer on the other surface, wherein the first negative electrode current collector includes a negative electrode active material layer on one surface and does not have a negative electrode active material layer on the other surface, wherein the second positive electrode current collector includes a positive electrode active material layer on one surface and does not have a positive electrode active material layer on the other surface, wherein the second negative electrode current collector includes a negative electrode active material layer on one surface and does not have a negative electrode active material layer on the other surface, wherein the other surface of the first negative electrode current collector and the other surface of the second negative electrode current collector are in contact with each other, wherein the secondary battery includes a gel electrolyte and a separator between the one surface of the first positive electrode current collector and the one surface of the first negative electrode current collector, wherein the gel electrolyte includes a polymer, an electrolyte, and a solvent, wherein the first positive electrode current collector, the first negative electrode current collector, the second positive electrode current collector, the second negative electrode current collector, the gel electrolyte, and the separator are covered with an exterior body, and wherein the first positive electrode current collector, the first negative electrode current collector, the second positive electrode current collector, the second negative electrode current collector, the separator, and the exterior body are flexible.