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New Delhi, Aug 1 As global computer chip shortage hits car manufacturers, researchers report that hybrid cars are twice as vulnerable to supply chain issues as conventional fuel-powered models.The results, published in the journal Environmental Science & Technology, showed that self-charging hybrid and plug-in hybrid vehicles have twice the raw material cost risks, which equates to an increase of $1 billion for a fleet of a million sedans and SUVs, compared to conventional models.The largest contributors to the increase in cost risks were battery-related elements, such as cobalt, nickel, graphite and neodymium; however, changes to the exhaust and transmission systems in hybrid vehicles reduced the impact of palladium and aluminum, respectively, according to Randolph Kirchain, Principal Research Scientist at Massachusetts Institute of Technology in the US.To reach this conclusion, the researchers collected information on the compounds in the more than 350,000 parts used to build seven vehicles from the same manufacturer with different levels of electrification, including four sedans and three sport utility vehicles (SUVs).Then, they calculated the amount of the 76 chemical elements present, as well as a few other materials, in each car type.To develop a monetary metric for vulnerability, the team considered the weight of each component, along with its average price and price volatility between 1998 and 2015.Supply chain weaknesses were brought to the forefront during the Covid-19 pandemic, especially for industries relying on electronics, as the flow of raw materials slowed or sometimes stopped.On top of that, shifting consumer values and tougher environmental regulations have resulted in more people buying hybrid vehicles.The batteries in these cars require rare metals that, depending on their supplies, can have volatile and unpredictable prices."But there are other scarce elements and materials that may be used in smaller amounts in hybrid models versus conventional gas vehicles, raising the question of how these vehicles really compare with regard to supply chain vulnerabilities," the study noted.The team suggests that as manufacturers ramp up electric vehicle production to meet demand, they can reduce raw material cost risks with long-term supplier contracts, substitute some materials or recycle others.Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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Technology :Hybrid cars more vulnerable to chip shortage that conventional ones

New Delhi, Aug 1 As global computer chip shortage hits car manufacturers, researchers report that hybrid cars are ... ...