Non-aqueous electrolyte secondary battery cell and assembled battery using same

A non-aqueous electrolyte secondary battery cell, in which the cell itself has a shape of a cylinder or a polygonal tube with rounded corners, the cell comprising;

• a core material provided at a center of the cell, the core material being an insulating body having a circular or quadrangular cross-section and having a shape of a hollow tube, the core material preventing permeation of an electrolyte;
• a cell monitoring system provided inside a hollow part of the core material, the cell monitoring system comprising a voltage sensor, temperature sensor, and balancer for the cell, the voltage sensor, the temperature sensor, and the balancer being attached to the cell monitoring system;
• a cell basic member constituted by a positive electrode member, separator, and negative electrode member for the non-aqueous electrolyte secondary battery is wound or laminated on the core material serving as a shaft;
• an electro-conductive terminal electrically connected to a current collector of the positive electrode member and an electro-conductive terminal electrically connected to a current collector of the negative electrode member are provided on the cell, the terminals being exposed to outer sides of the cell;
• and
• wherein the temperature sensor of the cell monitoring system is attached to a central part of the hollow part of the core material by being firmly adhered to the core material, and wherein the non-aqueous electrolyte secondary battery cell is connected with a wire used to dissipate heat generated at the balancer via the terminal of the positive electrode or the terminal of the negative electrode.