That is a fairly detailed article.
- Volt battery spec requires 4,000 charge cycle lifespan. LG's cell meets it. You may also recall the Korean electric car converter named Leo Motors also using LG cell claiming 4,000 charge cycle lifespan as well.
- Cells account for 70% of battery pack's cost. Meaning the pack may cost in excess of $10,000, even if LG sells the battery cells for $7,000 per car. A typical GM inefficiency.
- LG's cell was safer in crash test and structurally stronger than A123's.
n January 2009, GM selected the design from the team of LG Chem and Compact Power as the one that would best fit the Voltec platform from a structural standpoint. The cells in the LG Chem battery were deemed the most appropriate in structural integrity testing, and the cell size was the best fit with the cooling system that GM had designed for the Volt. The LG Chem battery provided the best results in rear-impact and side-impact crash tests. Most important to GM, which would be footing most of the manufacturing cost, was its confidence in the battery's ease of manufacturability and LG Chem's established track record in Li-ion manufacturing (A123 Systems was essentially a startup). The battery would be manufactured in Michigan in a facility that would be the first lithium-ion battery plant in the United States to be operated by a major automaker.