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                BYD electric car battery life can be used for 8 years?

                Update Time : 2015-07-02 View : 2773

                BYD Tang electric car battery life is actually much higher than in BYD Qin, because BYD Tang on the battery capacity of the battery is Qin of the expansion, the maximum battery capacity reached 18.4 kW and when. So BYD electric car battery life in the end how long?

                BYD electric car battery after the expansion of the battery capacity of up to 85 km

                BYD Tang is a four-wheel drive SUV models, but compared to the traditional 4WD models it not in the traditional sense of the central differential, transfer case and a transmission shaft and its drive system implementation is through in the rear axle of the vehicle a separate set of a motor to drive the rear axle, and through the motor control device to achieve the power distribution and the front and rear axle.

                BYD Tang's power system is divided into two sets, in which the conventional gasoline power system uses its own research and development of 2.0Ti engine and a new wet dual clutch transmission. This 2.0Ti engine maximum power of 151kW (205hp) /5500rpm, the maximum torque of 320N - m/1750-4500rpm.

                The electric power system is composed of two sets of motor. The maximum power is 110kW, the maximum torque is m - 200N. When the vehicle is in a hurry to speed up the engine and the motor, the engine can output the maximum power of M, the maximum torque of 370kW - 720N. For the car's acceleration performance, the manufacturers announced the time of the Tang 4.9s 0-100km/h.

                Although and has been listed on the Qin the same DM II hybrid system, the battery capacity of the battery Tang is the upgrade, maximum battery capacity reached 18.4 kW, such Tang pure electric can achieve 85 kilometers mileage.

                BYD Tang electric vehicle battery Xiangjie

                BYD Tang Dynasty and Qin uses lithium iron phosphate battery, only Qin battery capacity for 13 kW -, and Tang's battery capacity upgrade to the 18 kW, and pure electric continued Hangda 85 km.

                Lithium iron phosphate battery, which refers to the lithium ion battery with lithium iron phosphate as cathode material. Cathode materials for lithium ion batteries are lithium cobalt oxide, lithium manganese oxide, lithium nickel oxide, lithium iron phosphate materials three yuan, etc.. Lithium cobalt oxide is the most used cathode material for lithium ion batteries.

                Long-life lead-acid battery cycle life in about 300 times, the maximum is 500, and lithium iron phosphate power battery, cycle life reached more than 2000 times the standard charge rate (5 hours), up to 2000 times. With the quality of lead-acid battery is "in the first half of the new, old half, maintenance and half a year", at most 1 to 1.5 years, and use of lithium iron phosphate battery under the same conditions, life theory will reach 7 to 8 years. Comprehensive consideration, the performance price ratio of 4 times more than the theory of lead-acid batteries.

                .

                The report shows, cobalt acid lithium battery is the most unsteady under high temperature, lithium iron phosphate battery the most stable: when temperature reaches 180 degrees Tesla with cobalt acid lithium battery can be decomposed into oxygen, emit a lot of heat and potentially explosive; lithium manganate battery decomposition temperature is higher than that of cobalt acid lithium battery; Biya Di lithium iron phosphate battery reaches 600 degrees structure remains stable, release oxygen.

                Battery technology roadmap determines the potential for the development of pure electric vehicles, the Japanese car enterprises most of the lithium battery, domestic car prices most of the use of lithium iron phosphate battery. Lithium iron phosphate on the energy density is lower than that of manganese oxide lithium iron battery, but in the use of life and. Manganate lithium iron battery under the environment of 50 degrees, manganese cathode will melt into the electrolyte and shorten the life, and lithium iron phosphate because the use of ferric iron, can no longer be chemical changes and longer life.

                Summary: BYD Tang electric vehicle battery life although the official did not make clear, but from the point of view of the performance of lithium iron phosphate battery, battery 7-8 years should is not a problem, but increased with the increase in the number of charging and leads to cell loss, manufacturers are able to provide battery repurchase etc. after-sales service project is to attract the consumer perspective another big selling point.

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