NOVELTY - A battery has a positive electrode (11) containing a positive electrode active material, a negative electrode (12) containing lithium transition metal compound having spinel structure as a negative electrode active material, and an electrolyte solution containing a solvent and electrolytic salt, where the positive electrode and the electrolyte solution contain phosphorus compound having a phosphorus-hydroxyl structure.    USE - Battery i.e. laminate film type lithium ion secondary battery for a battery pack, utilized as a power supply for an electric vehicle, an electrical storage apparatus, an electric power system and an electronic device (all claimed) such as built-in-camera, video tape recorder, mobile telephone, or notebook personal computer. Can also be used for a rail vehicle, a golf cart, an electrically driven cart and a hybrid vehicle.    ADVANTAGE - The battery can suppress the disassembly of the electrolyte solution in the positive electrode vicinity in high-temperature environment, and suppress a raise of the direct current resistance resulting from disassembly of electrolyte solution.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a battery pack comprising the battery, a control part controlling the battery, and an exterior part    (2) an electric vehicle comprising the battery, a converter receiving supply of electric power from the battery, and converting into the driving force of a vehicle, a control apparatus performing the information processing regarding vehicle control based on the information regarding the battery    (3) an electrical storage apparatus comprising an electric power information-control apparatus that transmits/receives a signal through another apparatus, and network, where charging/discharging control of the battery is performed based on the information received from the electric power information-control apparatus    (4) an electric power system comprising an electric power generating apparatus or a power network supplying an electric power to the battery.    DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of a laminate film type lithium ion secondary battery. '(Drawing includes non-English language text)'    Laminate-film type lithium ion secondary battery (1)    Positive electrode lead (2)    Negative electrode lead (3)    Adherence film (4)    Exterior member (5)    Positive electrode (11)    Negative electrode (12)