Power cell pack

Abstract

The invention relates to a power battery packet, which comprises an anode plate (a bus-bar), a cathode plate (a bus-bar) and a plurality of batteries, wherein the batteries are cylindrical or rectangular or cubical monomer batteries, and are welded between the anode plate and the cathode plate in the way of connection in parallel. The invention is characterized in that an anode terminal is led out from one end of the anode plate through the flow ways such as current and the like, and a cathode terminal is led out from the other end of the cathode plate in the reverse direction. The invention can be designed in W / h according to the vehicle-mounted space, and can be conducted with the effective connection in parallel or in series of expansion and split W / h according to the requirements, which is suitable for the transformation of vehicles with various types and purposes. The invention realizes 5C discharge and charge, can charge in 15 minutes, and has 1700 times of service life and 80% DOD, which fundamentally solves the conflict of cost performance and safety and durability, and solves the technical problems that world battery industry manage to solve.

Description

(1) Technical field [0001] The invention relates to a power battery pack for an electric vehicle, in particular to a power battery pack suitable for high-capacity lithium iron phosphate single cells. (2) Background technology [0002] At present, domestic electric vehicles generally use lithium manganese oxide batteries with a large capacity of 50-100A or more that cannot be mass-produced in parallel and in series to form a power battery pack to supply power to the vehicle. In terms of safety, reliability, durability and control system information In terms of degree, it cannot meet the basic needs of urban public transportation, especially its safety factor is lack of effective guarantee compared with lithium iron phosphate high-capacity single battery. [0003] In view of the above problems, a power battery pack using lithium ferrous phosphate high-capacity single battery for electric vehicles is proposed, which improves the plate, battery, manufacturing process and other a...

AI Technical Summary

Problems solved by technology

[0002] At present, domestic electric vehicles generally use lithium manganese oxide batteries with a large capacity of 50-100A or more that cannot be mass-produced in parallel and in series to form a power battery pack to supply power to the vehicle. In terms of safety, reliability, durability and control system information In terms of degree, it cannot meet the basic needs of urban public transportation, especially its safety factor is lack of effective guarantee compared with lithium iron phosphate high-capacity single battery

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