The electrode for a lithium secondary battery, a lithium secondary battery, and an automobile

A imido group contained in the polyamide-imide used as a binder for the electrode active material due to decomposition hydrolyzed, suppressing or adhesive strength of the binder, strength, a reduction in extensibility , lithium water due to charging and discharging is repeated even when the generated, suppressing deterioration of the electrode, a lithium secondary battery electrode that can prolong the life of the lithium secondary battery, using the same secondary battery, and the provision of motor vehicles. A polyamide-imide, a lithium secondary battery electrode binder comprising a carbodiimide, active material layers 1 and / or 4 for a lithium secondary battery electrode 3 and / or 6 having a containing an active material. The electrode 3 and / or 6, a negative electrode 3 including a negative electrode active material containing silicon as an active material. Further, a positive electrode 6 comprising a positive electrode active material as an active material. Preferably, the number average molecular weight of the carbodiimide is a 3,000 to 50,000, the content is 0.5 to 20 wt%, a lithium secondary battery electrode. .FIELD 1