Provided are an electrode binder for lithium secondary batteries, which is suppressed in deterioration in adhesive power, strength and stretchability caused by decomposition of imide groups by hydrolysis, said imide groups being contained in a polyamide-imide that is used as a binder for an electrode active material, and which is capable of prolonging the service life of a lithium secondary battery by suppressing deterioration of an electrode even in cases where water is generated due to repeated charging and discharging; a negative electrode for lithium secondary batteries; a lithium secondary battery; a method for manufacturing a lithium secondary battery having long service life, said lithium secondary battery being suppressed in deterioration of an electrode even in cases where water is generated due to repeated charging and discharging; a method for producing an electrode binder for lithium secondary batteries; and an automobile. This electrode binder for lithium secondary batteries contains a polyamideimide and a carbodiimide. A lithium secondary battery is manufactured by forming an electrode layer using a coating liquid that contains an electrode active material, a polyamideimide, a carbodiimide and a solvent.