The report of the 64th meeting of the United Nations Committee of Experts on the Transport of Dangerous Goods was published on the website of the United Nations Economic Commission for Europe. among them, the proposal submitted by my delegation to revise the "T.6 impact/crush" test method for lithium batteries in the United Nations Manual of Tests and Criteria UN38.3 (ST/SG/AC.10/C.3/2024/39) was adopted by the General Conference.. The adoption of this proposal fully demonstrates my country's excellent strength and technical authority in carrying out professional and technical research, participating in the formulation of international rules, and ensuring the safety of the transportation of dangerous goods. It has also won international recognition and unanimous praise for our delegation.
In recent years, the new energy industry represented by lithium batteries has developed rapidly. New energy vehicles, lithium batteries, and photovoltaic products have added new colors to my country's manufacturing. General Secretary Xi Jinping emphasized that "energy security is related to the overall economic and social development, and we must make greater efforts to promote the high-quality development of my country's new energy", "we must deepen international cooperation in new energy technology innovation, deeply participate in international energy governance reforms, and promote the establishment of fairness, justice, A balanced and inclusive global energy governance system".
Ankor Jie Testing (Changzhou) Co., Ltd. has long been engaged in the inspection and testing of new energy products. In 2023, we deeply participated in the organization and implementation of the lithium battery capability verification plan hosted by Qingdao Customs Technology Center, and jointly found the technical problems existing in the current international authoritative testing standards for lithium batteries. After repeated argumentation and practical verification by experts from Ancogen and Qingdao Customs Technology Center, it is believed that under the current T.6 standard method, lithium battery samples are likely to be misjudged due to defects in the test method. On the one hand, it is possible that the tested battery is damaged due to shear force under the condition that the overall pressure is not qualified. Although the test conclusion is not passed, it may cover up the situation that the overall pressure causes greater damage consequences and cannot fully indicate the safety risk of the sample. On the other hand, it is also possible that samples that could originally bear the overall pressure show unqualified results due to the damage caused by shear force, bringing unnecessary re-development costs to enterprises, delaying or hindering the development of the lithium battery industry.
The adoption of the revised UN38.3 T.6 test method proposal will further enhance the scientific nature of the lithium battery safety evaluation test, provide strong technical support for the improvement of the safety performance of lithium battery products in China and the expansion of the international market, and is of great significance for China to continue to lead the discourse power of lithium battery product testing standards.