Toward those ends, a team headed by GM account manager Steven Van Loozen evaluated the structural performance of several molding materials, based on GM’s battery pack CAD model. Another challenge was the design of an integrated cooling and heating system that would keep the battery operating safely and at peak efficiency. Each frame’s dimensional precision would have to approach that of a machined part, yet it needed to be achieved in an injection molding process. The key engineering challenge was to design and produce composite frames that, when stacked in the pack assembly, would form a finished structure within acceptable dimensional tolerances. “We put a team together committed to best practices and system solutions.” “This was a design that pushed the edge, and we needed buy-in from everyone to get there,” Kollar recalls. This dual demand tested the skill sets of GM’s partners in the project, material supplier BASF (Ludwigshafen, Germany), molder MANN+HUMMEL (Portage, Mich.) and Canadian toolmaker Omega Corp.
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Section 3 features one six-cell group module plus three 12-cell group modules, for a total of 126 cells.Ĭraig Kollar, General Motors’ engineering group manager for cell release, says the complex battery pack - essentially an underbody part - had to meet exacting requirements for dimensional stability and robust durability. Section 2 contains two 12-cell group modules, totaling 72 cells. Section 1 is made up of one six-cell group module plus two 12-cell group modules, for a total of 90 cells. Each is built up from a fundamental unit called a cell group, which comprises three lithium-ion cells connected in parallel. The assembled battery pack is T-shaped: 1,600 mm long by 900 mm wide at the top of the T (63 inches by 35.4 inches) it narrows to 400 mm/15.75 inches wide to fit within the Volt’s underbody tunnel, with a height throughout of about 300 mm/11.81 inches. The end frames each hold one cell, and a metal plate is inserted into the center of the frame to fill and seal its open area. Each repeating frame holds two lithium-ion cells, one on each side, separated by a layer of insulating foam. Enclosing the cells are 135 repeating frames, each approximately 250 mm wide and tall by 15 mm thick (9.8 inches square by 0.60 inch thick), and 18 similarly sized end frames (see diagram). The battery features 288 individual battery cells housed in a lightweight glass fiber-reinforced thermoplastic battery pack that incorporates an integral thermal management system. It’s that easy.Top 10 Considerations When Buying a CNC Machine for Composites As soon as we receive your core battery, we will refund the core deposit back to you.
How do I return my old Chevy Volt battery? Once your new hybrid battery has arrived, put the core battery back into the same packaging your battery arrived in. In all other circumstances, the core will be picked up at the time of service, no deposit required. Cores must be returned within 45 days of purchase. Once we receive your old battery, we will refund the core deposit back to you minus the cost of return shipping. Let Greentec Auto make it simple to return your core to us, ask about our reduced return shipping rates.Ĭore Charge: A refundable "core deposit" of $2.500.00 will be added to your order at checkout. Add $125 for shipping to a residential address. This offer is good for the entire continental United States. Shipping: How much does a Chevy Volt battery cost to ship? The cost of battery shipping to you is already included with your purchase.
Warranty: 18 (eighteen) months, unlimited mileage and the original service purchased for Chevy Volt battery replacement.