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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.

洞察与数据

在我们的安全信息数字图书馆中浏览我们公开提供的数字资源和研究成果。

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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. 本报告 offers the third annual look at those findings.

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.

“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.。”

–杰夫-马鲁蒂安, 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.

电动汽车设备与热失控

热失控和由此引发的锂离子电池火灾是主要的安全威胁。了解标准如何提供帮助。

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.

A simple, pixelated graphic of a white cow with a green spot near its eye, viewed from the side, on a black background.

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.

事故频发，责任转移：航空货运供应链中的锂电池

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.

“监管机构非常依赖运营商…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

精选见解与数据

60%

的美国人不知道 锂离子电池 为他们日常使用的许多产品提供动力。

65%

每 10 万名乘客中发生的电池事故 rose almost 65% 在过去五年中，即从 2019 年到 2023 年。

53%

大多数 电动车车主不了解 他们的设备由锂离子电池供电。

36%

的美国消费者 没办法 家庭一氧化碳检测。

86.2M

个人有 无法检测 CO 泄漏 在他们的家中。

按重点领域探索

  • A woman and a young girl sit on a bed, smiling and packing clothes into an open suitcase together, with large windows in the background letting in natural light.

    Lithium-Ion Battery Incidents in Aviation: 2025 Data Review

    了解更多
  • A woman and a young girl sit on a bed, smiling and packing clothes into an open suitcase together, with large windows in the background letting in natural light.

    Lithium-Ion Battery Incidents in Aviation: 2025 Data Review

    了解更多

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  • A document cover displaying "ANSI/CAN/UL/ULC 2580:2022," labeled as a safety standard for batteries for electric vehicles, with text in French and a note mentioning Canada and the United States.

    其他资源

    Avis aux Utilisateurs des Normes ULSE en Français

    了解更多
  • A woman with curly hair and a colorful headband uses a wall-mounted smart home tablet, holding a smartphone in her other hand, in a modern, sunlit home interior.

    报告

    通过标准提高智能家居的消费者信任度和创新性

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    报告

    新报告发现标准可增强消费者信任，推动智能家居技术的商业创新

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    视频

    增强可持续性

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  • A holiday safety guide booklet with "2023 Holiday Safety Guide" on the cover, featuring holiday-themed icons such as a menorah, snowman, gingerbread cookie, gift, pie, stocking, and ornaments.

    报告

    2023 年假日安全指南

    了解更多
  • Three firefighters in full gear and oxygen tanks face a large blaze, with bright flames and smoke rising in the background. Their reflective stripes are visible as they prepare to tackle the fire.

    视频

    Addressing Fire Hazards in Colombia Through Data Science and Engineering

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