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GM announced remembers every Chevrolet Bolt that has been developed so far, including new types of electric cars, for worrying that the problem of making LG car batteries could cause a fire.
Bolt was first remembered in November five cars that were not involved in the accident burned down. After further investigation of the problem, Chevy recalled a second batch in July. The problem stemmed from two production processes that could occur simultaneously. The defects — the twisting tab and the built-in defect — created objects that could bring less to the affected cells. So far, the company has identified 10 fires that affect faulty batteries, according to a AP report.
These third and new memories plus 73,000 Bolts manufactured from 2019 to 2022, the current year, and brings the total memory of approximately 142,000 cars, of which 100,000 have been sold in the US. GM estimates that the original memory will cost $ 800 million, and expects the newcomer to add $ 1 billion in total. GM said it was asking for a refund from LG.
To solve the problem, the manufacturer will install batteries, a cheap and tedious process that can take time. Until the replacement batteries is ready and job selection can be adjusted, GM has urged Bolt owners to park their cars outside and reduce their batteries by 90 percent or less. The company also urged not to allow the quantity to be placed beyond 70 miles. GM says it is working with LG Chem to increase production of mutant cells.
Troubleshooting
The faulty batteries were initially inspected by the LG Chem factory in Ochang, South Korea, and the companies believe the problem lies in the plant. But a fire a few weeks ago in Chandler, Arizona, related to the 2019 Bolts led investigators to increase their volume, revealing that problems were also present in batteries manufactured in other LG factories.
GM and LG Chem are partners in a new multi-billion dollar partnership making Ultium batteries which will support new ones electric cars from a Detroit automaker. The companies have announced two $ 2.3 billion battery factories in Ohio and Tennessee, which are set to start production next year.
GM originally partnered with LG Chem for its high-end batteries in 2008, when the automaker opted for the company to offer its Chevy Volt plug-in hybrid package. At the time, many people believed that GM chose the Korean company because of its reputation for new lithium-ion batteries. It was a decision to be made that one of the rivals in the alliance, the A123, had a black eye a few years later when his batteries had bricks made of Fisker Karma bricks.
But even LG Chem’s skills and expertise in manufacturing were not protected by major flaws. “Batteries are a problem,” Greg Less, director of Battery Lab at the University of Michigan, told me another story. “If it weren’t for the toughness, everyone would have made it.”
In recent years, battery manufacturers have struggled to meet the growing demand for price, stability, and efficiency in developing new chemists. Most lithium-ion batteries in a car use cobalt to maintain stability when charging and discharging. But cobalt is expensive, and most are found in the Democratic Republic of Congo, a country known for its human rights record and illegal mining. Electricians have been working to reduce the amount of cobalt used, and to replace it with a nickel, which also helps to increase energy efficiency. Unfortunately, high-density batteries are also prone to fire.
Although GM or LG did not produce Bolt’s specific electronics, its production is thought to be NMC 622, or six parts of nickel, two parts of manganese, and two parts of cobalt. It is similar to what other users use. There have been a lot of memories lately when machine makers make kinks in their electronic chains-Ford, Hyundai, and Bmw all remember cars recently. At present, the memory is much lower than that of GM, and their origins range from manufacturing to complex programming complexity.
Too Much Fire?
Although EV fires raise popular headlines, it is not known if EVs light fires more frequently than internal combustion vehicles. Earlier this month, Products produced a picture in reports claiming that fuel oil is 11 times more likely to cause fires than Tesla’s own cars (as tested by fire for billions of miles). On the other hand, More for 2019 from the London Fire Brigade shows that connecting vehicles are more similar to fire than ICE vehicles (0.1% versus 0.04% of registered vehicles in the city).
As GM continues to sell electronics, the company understands that it needs to move quickly to address the problem. “We are working with our suppliers and manufacturing teams to find out how we can charge the battery to change the memory modules,” GM spokesman Dan Flores wrote. CNBC at the end of last month’s memorial. “The teams are working around the clock on this issue.”
The story first appeared Ars Technica.
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