Source: Cycling Electric

China has passed a new electric vehicle (EV) battery safety regulation, becoming the first country to mandate that battery packs must not catch fire or explode, even in the event of internal thermal runaway.

Effective from mid-2026, this regulation will require EV manufacturers to meet significantly enhanced safety standards. Currently, EV manufacturers are required to include warning systems that alert users to thermal incidents at least five minutes before they become dangerous. This is typically achieved through extensive sensor systems that detect abnormalities and trigger automatic shutdowns or alerts.

Under the new regulation, manufacturers must now demonstrate that battery packs will not ignite, explode, or release smoke into vehicle cabins under a variety of stress conditions. The testing requirements include a new safety evaluation following a fast-charging cycle, as well as an external short-circuit test after 300 fast-charging cycles – neither of which may result in fire or explosion.

Wider e-mobility industry implications

Although the regulation is primarily targeted at electric cars, it applies to all electric vehicles, raising potential implications for the broader e-mobility sector, including e-bikes. The new standard, GB38031-2025, titled Safety Requirements for Power Batteries of Electric Vehicles, may influence battery suppliers and technologies across related industries due to shared components and manufacturing practices.

While the regulation may lead to increased compliance costs, particularly challenging for smaller or mid-sized suppliers, it is expected that larger battery manufacturers, many of which already supply reputable e-bike brands, will be able to adapt. Many companies in the bicycle industry have already been voluntarily improving battery safety standards.

Research from UK testing facilities has indicated a clear relationship between product cost and adherence to safety standards. For the bicycle industry, failure to adopt robust safety practices may present significant risks, particularly as incidents involving poorly regulated battery products continue to attract public and regulatory scrutiny.

Recent restrictions by transport operators and property managers have often followed media coverage of e-bike battery fires. However, investigations frequently trace such incidents to aftermarket conversion kits, which are commonly sold directly to consumers without rigorous safety oversight, rather than to mass-produced e-bikes from established brands.

In parallel, China is advancing the adoption of sodium-ion battery technology, which is inherently non-toxic and non-flammable, reducing the risk of thermal incidents. While sodium-ion batteries are currently less energy-dense and larger than their lithium-ion counterparts, they are gaining traction in applications where size and weight are less critical, such as cargo bikes. For instance, AKKU Energie has supplied Deutsche Post with sodium-ion batteries for its delivery fleet.

Continued advancements in sodium-ion battery performance suggest increasing viability in a wider range of electric vehicles. As China expands its use of this chemistry, it may influence global battery technology trends.