by Kyle Molyneux | Tue 01 Jun 2021
Electric Doosan mini-excavator in the works
Doosan Infracore has manufactured its first battery pack prototype. The prototype, developed in-house, is expected to help Doosan Infracore accelerate its battery pack business and motorised product development. A battery pack is the final form of the battery system mounted on motorised machines. It is configured with control and protection systems, such as a battery module that bundles a certain number of batteries in cell units into a frame, a battery management system (BMS) and a cooling system.
Doosan Infracore’s says its battery pack offers the advantage of a flexible design to meet unit voltage and capacity requirements by combining standardised cylindrical battery cells. Using the BMS, the standardised and shared design has been applied to enable battery pack configuration with up to 32 modules regardless of parallel or serial connection. The battery cell offers improved energy density and stability by using structural adhesive physically and wire bonding electrically. Doosan Infracore has been developing battery packs after completing a feasibility review of the electric powerpack business last year. Having developed the prototype, it plans to manufacture an initial 1.7-tonne electric excavator product with the battery pack after testing it while mounted on actual equipment.
“The battery pack can be mounted on all electrically driven vehicles, such as construction, mining and agricultural machines and golf carts. We have set an annual sales target of 500 billion won (444 million USD) or more in the battery pack business by 2030,” a Doosan Infracore official said.
Previously, Doosan Infracore has successfully developed the company’s mild hybrid powertrain technology, a middle step between the internal combustion engine and the electric motor drive. The hybrid powertrain adds electric motors and batteries to the internal combustion engine to offer power ignition, improved fuel rating and output, and reduced carbon emissions. Doosan Infracore’s 48V Mild Hybrid Powertrain was selected as a notable new product for 2020 by Diesel Progress, the leading magazine for the engine market.
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