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Lithium-Ion Batteries to Blame for E-Bikes Catching Fire


September 12, 2019

ATLANTA, GA. — Electronic bikes, or e-bikes for short, have become a common sight around big cities like Atlanta. E-bikes offer a convenient, low-cost, and efficient method of getting around in places where vehicular traffic often chokes streets. As their popularity grows and their use increases, the short-comings of e-bikes have begun to unmask themselves. Across the country, e-bikes have caught fire due to the lithium-ion batteries which fuel the e-bike’s motor. Ride.Tech reported recently that electric bicycles had caught fire in Seattle, San Diego, Brooklyn, and elsewhere in the United States. Fortunately, no rider sustained any burns or other injuries. *

Lithium-ion battery fires start as a result of a phenomenon known as a thermal runway. Thermal runway happens when the temperature in the battery cells continues to increase. At the point of critical mass, as described by Ride.Tech, the battery continues to generate heat from chemical reactions that produce oxygen. Consequently, oxygen production generates more heat. 

A thermal runway is typically not a problem encountered with e-bikes unless there is damage to the battery cells. The damage to the battery cells could create a short-circuit or occur if the lithium-ion battery overheated while charging. A similar condition is known to exist in the lithium-ion batteries that power Tesla vehicles as well.

E-bike manufacturers understand the problem and have taken steps to prevent fires. In fact, they found that cylindrical battery cells have a higher capacity to contain heat than flatter battery cells. Flatter battery cells destabilize more rapidly than their cylindrical counterparts. A customer looking for a safe e-bike should understand that cylindrical battery cells are expensive to produce. Therefore, cheaper e-bike models could have batteries that might ignite a fire. Furthermore, damage to the battery cells often happens as result of either dropping the bike on the battery pack or as an act of vandalism.

E-bike riders can protect themselves. They should keep a fire extinguisher handy just in case there is a fire, use the correct charger for the battery, and always supervise the e-bike while it is in charge mode. 

Accident News is a safety and education initiative from Montlick & Associates, designed to help people better understand and thereby avoid common accident causes.  To learn more about our injury prevention programs, including iridesafe.com - click here. We hope you are never in an accident, but if you or family member are injured, call Montlick & Associates 24/7 for your free consultation at 1-800-LAW-NEED (1-800-529-6333) or use our live chat at Montlick.com.

Source:https://ride.tech/mobility-lifestyle/flame-out-why-are-e-bikes-catching-on-fire/

* This blog is intended to provide the public with news concerning serious automobile accidents and related stories. Although we are receiving this information from news organizations, initial reports may be different from conclusions reached by law enforcement personnel and other organizations, upon further investigation. Therefore, the accuracy of the content is not guaranteed. The information published here is based on information that has already been reported by a news organization, or other sources, and we cannot and do not assume responsibility for its accuracy. The source that we utilized at the time is provided above. If this posting pertains to you or your family and you do not wish for it to be on our website, please email us at [email protected] and we will be happy to remove it, but when doing so, please include a link to the the article that you wish to be taken down.

Category: Accident News

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