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A woman stands in front of a projected presentation slide showing survey results about campus bicycle facilities, with audience members seated and listening in a bright conference room.

Información y datos

Consulte nuestros recursos digitales de acceso público y los resultados de nuestras investigaciones en nuestra biblioteca digital de información sobre seguridad.

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Data Insights

Signature Reports

Lithium-Ion Battery Incidents in Aviation: 2025 Data Review

Rechargeable devices, such as phones, laptops, tablets, and power banks, are essential to modern air travel. But as lithium-ion batteries become more widely used in these and other consumer products, the risk of safety hazards from thermal runaway continues to grow.

UL Standards & Engagement collects thermal runaway incident data and surveys airline passengers to better understand the risks and realities of rechargeable batteries overheating in aviation settings. Este informe offers the third annual look at those findings.

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“Every incident is a safety risk, and the trend line is moving in the wrong direction. Passengers do not need to be safety experts to reduce the risk. Keeping rechargeable devices within reach can help us all fly in safer skies.”

–Jeff Marootian, President and CEO of UL Standards & Engagement

+42%

Jump in portable charger incidents over last year, making them the leading device involved in incidents

+15%

Increase in thermal runaway incidents on passenger planes from 2024 to 2025

39%
A person sitting on an airplane charges a smartphone using a USB cable plugged into a port on the seatback in front of them. The phone is held in one hand, and a seat pocket with a mesh front is visible.

Of passengers admit to putting lithium-ion powered products in their checked luggage

How Safety Oversights of E-Mobility Riders Threaten More Lithium-Ion Battery Fires

The e-mobility device landscape in the United States, comprised primarily of e-bikes and e-scooters, is undergoing a significant expansion fueled by advances in lithium-ion batteries and the allure of convenience. 

However, amid this rapid growth has come a troubling knowledge gap, leading to misuse that increases the risk of batteries going into thermal runaway, a state of uncontrollable heat that can result in fire or explosion if the lithium-ion battery is damaged, overcharged, or defective.

Dispositivos de movilidad eléctrica y fuga térmica

El desbordamiento térmico y los consiguientes incendios de baterías de iones de litio son importantes amenazas para la seguridad. Descubra cómo pueden ayudarle las normas.

Explore Full Report Findings
A green arrow pointing upward overlays a gray bar chart, symbolizing growth or an increase, on a white background.

E-bikes, e-scooters, and other micromobility devices are growing rapidly in use in communities across the globe.

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Recent UL Standards & Engagement surveys reveal a surprising lack of understanding among e-bike and e-scooter riders about the main technology powering their devices. 

Pixel art image of a panda’s face with green eyes, black ears, and a black nose, set against a white background. The design is simple and uses minimal colors and square pixels.

These public awareness gaps and misconceptions further underscore the urgent need for education, standards, and where appropriate, policy to support safer products.

54%

Of current e-bike and e-scooter owners purchased it to support workrelated tasks such as delivery gigs.

53%

Of owners of e-bikes are unaware that their device is powered by a lithium-ion battery. 

49%

Nearly half of e-bike riders (49%) who charge at home are blocking their home’s fire exits, a contributing factor in several cases where death occurred.

41%

Of e-mobility users report routinely charging their device overnight.

Aumento de los incidentes, cambio en la responsabilidad: las baterías de litio en la cadena de suministro de la carga aérea

Cargo airlines serve as the final checkpoint before takeoff, but limited visibility into shipments and a complex supply chain can make it difficult to identify and mitigate lithium-ion battery risks. Our research reveals a supply chain strained by fragmentation, uneven accountability, and commercial pressures that prioritize speed over safety.

ULSE conducted in-depth interviews and focus groups with cargo airlines, regulators, manufacturers, freight forwarders, e-commerce stakeholders, and shippers across the global battery supply chain. Click to see interview insights:

A simple illustration of a white fish facing left, with a green circular eye and a grey shaded area around the eye, set against a transparent background.

“If you have poor quality, everything else down the road doesn’t matter because poor quality is always going to show its head.”

-Battery Manufacturer

A simple illustration of a white fish facing left, with a green circular eye and a grey shaded area around the eye, set against a transparent background.

“There should be something that I have to put on the outside of the box to let them know what’s inside, but that has never been shown or taught to me.“

-Industry Shipper

A simple illustration of a white fish facing left, with a green circular eye and a grey shaded area around the eye, set against a transparent background.

“…even if you’re properly trained, our regulations are really complicated. I think there’s deliberate noncompliance and innocent noncompliance.”

-Industry Regulator

A simple illustration of a white fish facing left, with a green circular eye and a grey shaded area around the eye, set against a transparent background.

“Regulatory authorities are really relying on carriers…to do a lot of their policing and enforcement and investigation to try and identify shippers, reject shipments, even to bar…or refuse business from certain shippers.”

-Air Cargo Operator

+40%

Increase in thermal runaway incidents in cargo aviation from 2021 to 2025

+9%

Average rate of increase in incidents per year

25%
View from inside a large cargo plane with its rear door open, showing five workers in safety vests standing on the loading ramp, looking out toward the runway and sky.

Of air cargo in the U.S. is carried on commercial passenger flights

Datos y análisis destacados

60%

de los estadounidenses desconocen que baterías de iones de litio muchos de los productos que utilizan habitualmente.

65%

Incidentes con baterías por cada 100.000 pasajeros de avión rosa casi 65% en los últimos cinco años, de 2019 a 2023.

53%

La mayoría de los propietarios de dispositivos de e-movilidad no son conscientes que sus dispositivos funcionan con una batería de iones de litio.

36%

de los consumidores estadounidenses no tienen medios de detección de monóxido de carbono en el hogar.

86.2M

personas tienen no hay medios para detectar fugas de CO en sus hogares.

Explorar por área de interés

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    Celebramos 25 años de seguridad en los cuadros de control industrial con la norma UL 508A

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    Informes

    Lithium-Ion Battery Incidents in Aviation: 2025 Data Review

    Más información
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    Otros recursos

    Faire progresser l’adaptationau changement climatiquegrâce à des stratégies et dessolutions flexibles fondéessur des normes

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  • Flyer titled “Advancing Climate Adaptation Through Flexible, Standards-Based Strategies and Solutions” features a summary about UL Standards & Engagement’s workshop on climate adaptation, with a photo of two workers in hard hats on site.

    Otros recursos

    Advancing Climate Adaptation Through Flexible, Standards-Based Strategies and Solutions

    Más información
  • A worker in a hard hat and high-visibility jacket uses a tablet to inspect or monitor electrical control panels and wiring on a wall, likely performing maintenance or troubleshooting.

    Otros recursos

    Celebramos 25 años de seguridad en los cuadros de control industrial con la norma UL 508A

    Más información
  • A booklet titled "Developing a Campus E-mobility Model Policy: A Resource Guide" is shown open and closed. The cover features a person sitting on a curb with an e-scooter; inside are policy guidelines and green icons.

    Otros recursos

    Plantilla y Guía de Política de Movilidad Eléctrica para Campus Lista para Usar

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    Libro Blanco

    Adhesión a los principios de la OMC sobre obstáculos técnicos al comercio

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