The new regulations, known as GB 38031, which outline safety requirements for power batteries used in electric vehicles, are currently undergoing public consultation in Shanghai. Often referred to as the “strictest battery safety regulations ever,” these updates introduce new testing protocols, including bottom impact tests and safety assessments following fast charging cycles.
The primary focus of the updated regulations is to elevate the requirement of <b>“no fire, no explosion”</b> from a technical reserve of companies to a mandatory standard. This means that in the event of thermal runaway, power batteries must ensure that <b>no fire or explosion occurs</b>. Additionally, they are required to emit an alarm signal within five minutes, and smoke must not enter the passenger compartment.
Furthermore, the new standards include a <b>bottom impact test</b>, which simulates scenarios where foreign objects, like stones, impact the battery. This test involves using a steel ball with a diameter of 30 mm to strike the weakest part of the battery pack with an energy level of 150 Joules. The <b>safety test after fast charging cycles</b> mandates that after 300 fast charging cycles, the battery must still pass an external short circuit test to ensure safety after prolonged use of fast charging.
These additional requirements are expected to have a profound impact on the electric vehicle industry chain, driving advancements in battery technology, enhancing the overall safety performance of vehicles, and protecting consumers’ lives and property.
<b>Standard Number:</b> 20231690-Q-339
<b>Standard Name:</b> Safety Requirements for Power Batteries Used in Electric Vehicles
<b>Standard Summary:</b> This document specifies the safety requirements and testing methods for individual cells, battery packs, or systems used in electric vehicles.
<b>Replacement for Standard:</b> GB 38031-2020
<b>Proposed Implementation Date:</b> Effective from July 1, 2026; for new model type approvals, the standard will be enforced from the date of implementation; for existing model type approvals, enforcement will begin 13 months after the standard's implementation date.
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