The SC WG has completed the user journey and put the workflow into a sequence diagram. User stories and product backlog are also finished. The schemas for the pilot have been drafted and coded into JSON-LD to generate sample verifiable credentials. The group has also updated the user interface designs for OEMs, Suppliers, Dealers, Logistic Providers, and Customers.

The development team has been working with the WG Fellow and Technical Product Manager to understand the pilot workflows and implement the partsTRAK onboarding process. The EV Battery Track and Trace pilot is on track for completion in early to mid-2022 and WG members are actively discussing next steps. 

Stay tuned for more exciting EV battery initiatives from the MOBI community! 

Motivation Behind the Pilot

With the exponential rise of electric vehicles (EVs) comes an increased demand for EV parts. In the U.S. alone, electric storage batteries landed in the top 3 imports for September 2021. Globally, EVs are projected to make up 31% of all light-duty vehicles (LDVs) by 2050. This increased demand puts pressure on suppliers, vehicle manufacturers (OEMs), and dealers to ensure a safe, secure, efficient, and sustainable EV parts supply chain. Recent proposed legislation such as the EU’s carbon border tax, which imposes a levy on carbon intensive imports, places additional pressure on stakeholders to ensure the sustainable production of EV batteries. 

In an effort to improve the global vehicle supply chain, MOBI’s Supply Chain (SC) Working Group (WG) released standards in June 2021 to enable secure data exchange and enhance vehicle parts track and trace from raw material through production, 1st and 2nd use, recycling, and end of life. In addition, the WG aims to alleviate issues such as the ongoing semiconductor shortage and pricing surges for materials like tin and aluminum

While the SC blockchain-based standards can be used for all parts of a vehicle, the first pilot focuses on how to improve supply chain traceability for the most expensive part of an EV, the battery. Tracking the battery pack enables use cases such as ethical and sustainable sourcing, battery state of health (SOH), battery second life, recall management, and many more. As mandated by the European Commission’s Sustainable Batteries Regulation, it is critical to have digital records of the battery lifecycle and ensure ESG guidelines are met. The regulation sets requirements at every stage of the battery life cycle, ensuring circular and sustainable battery production throughout the entire process. This regulation has implications for several stakeholders, including suppliers, OEMs, and dealers. 

What the Pilot Demonstrates

Once the specific implementation criteria are set, the SC WG will join the DRIVES Program to demonstrate EV battery track and trace on Citopia partsTRAK platform using MOBI Trusted Trip Verifiable Credentials (VCs). The pilot focuses on downstream traceability of EV battery packs and modules and will track the chain of custody from supplier to OEM, OEM to dealer, and dealer to vehicle owner. In case the EV battery packs are to be serviced or replaced after EVs are sold, the pilot will track upstream chain of custody of the battery packs from Vehicle Owners to the supplier.  

The WG is completing the user journey for the application. A critical element of the pilot is defining the visibility requirements for all stakeholders at each stage of chain of custody of the battery pack. mobiNET will provide decentralized identity (DID) services for the stakeholders while Citopia partsTRAK will act as the platform for participants to issue vehicle identity, battery identity, and location-related VCs. Most of the information sharing during the upstream/downstream chain of custody will be conducted through VCs off-chain and the hash of the VC will be stored on-chain for timestamp and verifications. 

The pilot is expected to be completed by early to mid-2022.

Read about our other pilots: