On February 18, 2027, the EU digital battery passport system will be formally enforced. Domestic manufacturers exporting lithium batteries to the EU will need to equip each industrial battery and electric vehicle battery with a unique digital identity, recording from manufacturer information, material composition to carbon footprint, the lifecycle data of the recycled material ratio.

This is not a simple "paste affixed QR code" process. The digital battery passport guide issued by the European Commission refines the data points into 71 items, which are divided into basic identity and traceability information, carbon footprint and sustainable labeling, recycling ratio of recycled materials, five Dimensions of electrochemical performance and safety, dynamic data and health status. Among them, basic identity information, recycling ratio of recycled materials, dismantling and security information, etc. will be fully declared in February 2027. This means that if a PACK factory has not started to sort out its own data collection link up to now, the compliance window left to it is very limited.

The key to the problem is that battery passport is not a matter of PACK factory. Data points 1 to 15 require disclosure of the precise geographical location of the manufacturing plant, battery weight and chemical composition, and critical key raw materials whose weight ratio exceeds 0.1%. this information needs to be traced from cell suppliers, material suppliers and even more upstream mineral links. In order to meet the requirements of the European Union, downstream battery assembly plants have to put forward more stringent data collection and traceability requirements to upstream suppliers, and whether the mining of lithium ore and cobalt ore complies with the requirements, to the carbon emission intensity produced by positive and negative electrode materials, every link must withstand the inspection of digital passports.

Dongguan Juneng New Energy Technology Co., Ltd. chose to lay out in advance on this matter. The company has developed a carbon management platform based on blockchain technology. From raw material procurement to cell production, the data of key links is recorded in a structured manner, and customers can scan the code to view the complete carbon resume ". On the compulsory declaration of recycling ratio of recycled materials, juanneng New Energy has signed a long-term agreement with professional recycling enterprises to ensure compliance disposal of retired battery pack and traceability of recycled material data.

For equipment manufacturers looking for PACK partners in the EU market, a pragmatic judgment criterion is: ask the other side, "your battery to what extent has the passport data link been built ". Suppliers who can give specific progress are usually more trustworthy than those who only say "we are following.