TodayApril 16, 2022

The Chevy Volt: Chemical energy is energy

Chevy Volt energy is electric

Ninety-eight percent of the cars sold in the United States are internal combustion engines. We’re so used to internal combustion engines. We think nothing of going to the gasoline station and filling our tank with gasoline and driving hundreds of miles at a time.

We’re so comfortable with the internal combustion engine that it doesn’t bother us to put 20-30 gallons of gasoline and a lead-acid battery, with lots of fuel lines and wires connected to an engine, in a garage that is below or beside the house our loved ones sleep in at night.

It would surprise some that in 2007 over 1/4 million cars caught on fire. In 2010 about 4,000 cars a week caught on fire. All energies have issues, including hydrocarbons, also known as gasoline, and including batteries. The more power-dense a battery, the more likely it will have a problem.

Advanced technology will still require energy, whether it is hydrocarbons or lithium manganese oxide batteries, like the ones in the Chevy Volt.

Back in 2006, I sat with Bob Lutz in Camp Pendelton where he told me that General Motors had spent $3 Billion dollars on advertising and that they wouldn’t get nearly the recognition Toyota got just by bringing out the Toyota Prius.

The following year General Motors became Government Motors. Funding was slashed for many future projects. The one project that didn’t get squelched was the Chevy Volt. To insiders, it was the antithesis of what the public saw General Motors as, gas slogging, jet ski pulling pickups and SUVs on steroids. It was the American save face that was supposed to be General Motors shogun.

In the midst of all the banter back and forth over whether General Motors should have received bailout money the Chevy Volt trudged on. The rumors kept flying that it was making headway. Before it was shown to the public General Motors crash tested over 100 vehicles, all in order to ensure the public’s safety, so there would be no questions from the National Highway Transportation Safety Administration (NHTSA).

In May 2011, after the Volt was already on the market being sold to the retail public, NHTSA tested a Volt. NHTSA, the purveyor of all regulations and requirements for safety, did not de-power the battery after the Volt was crash tested.

I called NHTSA. Jose Ucles, a spokesperson for NHTSA. Ucles said that NHTSA put out a press release that stated the facts and that they would not be answering any other questions. NHTSA would not tell me whether they meant to leave the energy in the battery to do a case study. They would not tell me whether they had tested any Volts before they went on sale.

The Volt is not just any car. It is a car that holds advanced technology. The Volt carries a lithium-ion (Li-Ion) battery, one of the first cars on the market to have such a high power density battery.

Chevy is concerned, and they are working on allying any fears or concerns their customers may have about the Volt. Chevy has offered to replace a Volt with any car in the Chevy fleet (except a Corvette) until the issue is resolved. So far, they have had 33 takers out of the 6,142 on the road.

Press release from NHTSA:

WASHINGTON, DC ” The National Highway Traffic Safety Administration (NHTSA) issued the following statement today announcing the agency will be opening a formal safety defect investigation to assess the risk of fire in Chevy Volts that have been involved in a serious crash:

The National Highway Traffic Safety Administration is deeply committed to improving safety on our nation’s roadways. As part of our core mission to reduce traffic injuries and fatalities, NHTSA is continually working to ensure automakers are in compliance with federal motor vehicle safety standards, culling information to identify safety defects, and ensuring manufacturers conduct any necessary safety recalls. The agency has also developed a robust New Car Assessment Program (NCAP) to test the majority of the vehicle models introduced to consumers each year.

This past May, NHTSA crashed a Chevy Volt in an NCAP test designed to measure the vehicle’s ability to protect occupants from injury in a side collision. During that test, the vehicle’s battery was damaged and the coolant line was ruptured. When a fire involving the test vehicle occurred more than three weeks after it was crashed, the agency concluded that the damage to the vehicle’s lithium-ion battery during the crash test led to the fire. Since that fire incident, NHTSA has taken a number of steps to gather additional information about the potential for fire in electric vehicles involved in a crash, including working with the Department of Energy and the Department of Defense ” in close coordination with experts from General Motors” to complete rigorous tests of the Volt’s lithium-ion batteries.

In an effort to recreate the May test, NHTSA conducted three tests last week on the Volt’s lithium-ion battery packs that intentionally damaged the battery compartment and ruptured the vehicle’s coolant line. Following a test on November 16 that did not result in a fire, a temporary increase in temperature was recorded in a test on November 17. During the test conducted on November 18 using similar protocols, the battery pack was rotated within hours after it was impacted and began to smoke and emit sparks shortly after rotation to 180 degrees. NHTSA’s forensic analysis of the November 18 fire incident is continuing this week. Yesterday, the battery pack that was tested on November 17 and that had been continually monitored since the test caught fire at the testing facility.

The agency is currently working with DOE, DOD, and GM to assess the cause and implications of yesterday’s fire. In each of the battery tests conducted in the past two weeks, the Volt’s battery was impacted and rotated to simulate a real-world, side-impact collision into a narrow object such as a tree or a pole followed by a rollover.

NHTSA is not aware of any roadway crashes that have resulted in battery-related fires in Chevy Volts or other vehicles powered by lithium-ion batteries. Howe’ver, the agency is concerned that damage to the Volt’s batteries as part of three tests that are explicitly designed to replicate real-world crash scenarios have resulted in the fire. NHTSA is, therefore, opening a safety defect investigation of Chevy Volts, which could experience a battery-related fire following a crash. Chevy Volt owners whose vehicles have not been in a serious crash do not have a reason for concern.

While it is too soon to tell whether the investigation will lead to a recall of any vehicles or parts, if NHTSA identifies an unreasonable risk to safety, the agency will take immediate action to notify consumers and ensure that GM communicates with current vehicle owners.

In the meantime, the agency is continuing to work with all vehicle manufacturers to ensure they have appropriate post-crash protocols; asking automakers who currently have electric vehicles on the market or plan to introduce electric vehicles in the near future to provide guidance for discharging and handling their batteries along with any information they have for managing fire risks; and engaging the Department of Energy and the National Fire Protection Association to help inform the emergency response community of the potential for post-crash fires in electric vehicles.

NHTSA continues to believe that electric vehicles have incredible potential to save consumers money at the pump, help protect the environment, create jobs, and strengthen national security by reducing our dependence on oil. In fact, NHTSA testing on electric vehicles to date has not raised safety concerns about vehicles other than the Chevy Volt.

NHTSA’s current guidance for responding to electric vehicles that have been in a crash remains the same. The agency continues to urge consumers, emergency responders, and the operators of tow trucks and storage facilities to take the following precautions in the event of a crash involving an electric vehicle:

Consumers are advised to take the same actions they would in a crash involving a gasoline-powered vehicle ” exit the vehicle safely or await the assistance of an emergency responder if they are unable to get out on their own, move a safe distance away from the vehicle, and notify the authorities of the crash.

Emergency responders should check a vehicle for markings or other indications that it is electric-powered. If it is, they should exercise caution, per published guidelines, to avoid any possible electrical shock and should disconnect the battery from the vehicle circuits if possible.

Emergency responders should also use copious amounts of water if the fire is present or suspected and, keeping in mind that fire can occur for a considerable period after a crash, should proceed accordingly.

Operators of tow trucks and vehicle storage facilities should ensure the damaged vehicle is kept in an open area instead of inside a garage or other enclosed building.

Rather than attempt to discharge a propulsion battery, an emergency responder, tow truck operator, or storage facility manager should contact experts at the vehicle’s manufacturer on that subject.

Vehicle owners should not store a severely damaged vehicle in a garage or near other vehicles.
Consumers with questions about their electric vehicles should contact their local dealers.

Lou Ann Hammond

Lou Ann Hammond is the CEO of Carlist and Driving the Nation. She is the co-host of Real Wheels Washington Post carchat every Friday morning and is the Automotive, energy correspondent for The John Batchelor Show and a Contributor to Automotive Electronics magazine headquartered in Korea. Hammond is a founding member of the Women's World Car of the Year #WWCOTY, and board member of the Women in Automotive.