【Technical Field】 The present invention relates to a positive electrode for a lithium secondary battery, and more particularly, to a positive electrode for a lithium secondary battery having an improved safety, and a lithium secondary battery. This application claims the benefit of priority based on Korean Patent Application No. 10-2021-0039316, filed 10 on March 26, 2021, and the entire contents of the Korean patent application are incorporated herein by reference. 【Background Art】 As technology development and demand for mobile devices increase, the demand for 15 secondary batteries as energy sources is rapidly increasing. Among such secondary batteries, lithium secondary batteries having a high energy density and operating potential, a long cycle life and a low self-discharge rate are commercialized and widely used. Recently, as a lithium secondary battery is used as a power source of a medium or large size device such as an electric vehicle, a high capacity, a high energy density and lost 20 costs for lithium secondary batteries are required. As such, studies have been actively conducted to use low-cost Ni, Mn, Fe, etc. which may substitute expensive Co. 3 One of the main study objects of the lithium secondary battery is in implementing a high capacity and high output electrode active material and improving the safety of the battery using the same, and currently, the lithium secondary battery is designed to be used in a specific voltage region (generally, equal to or less than 4.4 V). However, the cell potential may rise to a level (up to 12V) above the general limit, and if such 5 an overcharge state exceeding an allowed electric current or voltage is continued, serious problems such as explosion or ignition of the lithium secondary battery may be caused. Particularly, in the case of a lithium secondary battery, which is used in medium-sized battery packs as power sources of as electric vehicles, hybrid cars etc., a long lifespan is required, and safety is very 10 important because a lot of battery cells are concentrated. As such, Korean Patent Publication No. 2019-0047203 discloses a technology for securing safety of a battery by blocking a charging current by increasing the resistance at the time of an overcharge by interposing an overcharge preventing layer between a positive electrode current collector and a positive electrode active material layer. However, when an 15 electrode including an overcharge preventing layer is used, safety is improved, but lifespan characteristics of the battery may become poor due to generation of an interlayer crack by a difference in composition between the overcharge preventing layer and the positive electrode active material layer, and safety decreases at the time of penetration of a needle body due to a low penetration resistance of an electrode. 20 Therefore, there is a need for a technology about a positive electrode for a secondary battery capable of increasing the penetration resistance in the case that a metal body such as a nail penetrates an electrode, without deteriorating the lifespan characteristics while improving the safety. 4 【Disclosure】 【Technical Problem】 As such, an object of the present invention is to provide a positive electrode for a secondary battery capable of securing safety of a battery by increasing 5 the penetration resistance in the case that a metal body such as a nail penetrates an electrode and improving lifespan characteristics of the battery, and a lithium secondary battery including the same. 【Technical Solution】 10 In order to solve the above-described problems, In an embodiment of the present invention, there is provided a positive electrode for a lithium secondary battery, the positive electrode comprising a structure including a laminate including sequential lamination of a current collector, a first mixture layer, and a second mixture layer, in order. 15 Herein, the first mixture layer includes a first binder containing a fluorine-based homopolymer. Further, the second mixture layer includes a second binder containing a fluorinebased copolymer having a miscible functional group. Further, the miscible functional group is derivated from one or more monomers 20 selected from the group consisting of (meth)acrylic acid, C1 to C10 alkyl(meth)acrylate, C1 to C10 alkyl(meth)acrylonitrile, and C1 to C10 alkyl(meth)acrylamide. 5 At this time, the first binder and the second binder satisfy Formula 1: [Formula 1] 1.0 ≤ Mw2nd/Mw1st ≤ 2.0 in the above Formula 1, Mw1st denotes a weight average molecular weight of 5 the first binder, and Mw2nd denotes a weight average molecular weight of the second binder. Further, a weight average molecular weight (Mw1st) of the first binder may be in a range of 10,000 g/mol to 1,000,000 g/mol. Further, a content of the miscible functional group may be in a range of 0.1 mol% to 10 10 mol% based on the fluorine-based copolymer. Further, the first mixture layer may include a first active material of 75 to 98 parts by weight, the first binder of 2 to 20 parts by weight, and a first conductive material of 5 parts by weight or less among a total of 100 parts by weight. Herein, the first active material may include lithium iron phosphate represented by 15 Chemical formula 1: [Chemical formula 1] Li1+xFe1-yM1 y(PO4-z)Xz in the above Chemical formula 1, M1 denotes at least one selected from the group consisting of Al, Mg and Ti, and X 20 denotes at least one selected from the group consisting of F, S and N, -0.5≤x≤+0.5, 0≤y≤0.5 and 0≤z≤0.1. In addition, the first mixture layer may satisfy at least one of Formula 2 and Formula 3: 6 [Formula 2] 4 ≤ a/b ≤ 20 [Formula 3] 15 < a/c in the above Formula 2 and Formula 3, a denotes a content of a first active material, b denotes a content 5 of the first binder, c denotes a content of a first conductive material. Further, the second mixture layer may include a second active material of 80 to 98 parts by weight, the second binder of 1 to 10 parts by weight, and a second conductive material of 10 parts by weight or less among a total of 100 parts by weight. 10 In addition, the first mixture layer and the second mixture layer may satisfy at least one of Formulas 4 to 6: [Formula 4] ab' [Formula 6] cb' [Formula 6] cb', and [Formula 6] c