Digital Battery Passport Module With Blockchain Access Control

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Solution Overview

Problem

The management of electrical energy storage batteries lacks data transparency across all stages of the battery lifecycle, leading to challenges in fostering a sustainable transition to low-carbon mobility and energy storage, with varying battery compositions and performances not easily accessible.

Innovation Solution

A manufacturer module for managing digital battery passports, which includes a creation submodule to generate digital battery passports with information on manufacturer, composition, and sustainability, and a code generation submodule to create a unique QR code for each battery, integrated with a blockchain for secure data management and access control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a digital battery passport system is implemented to ensure data transparency, then data accessibility and transparency are improved, but system complexity and implementation difficulty increase

Engineering Contradiction:
Improvedata transparencyVSAvoidsystem complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The system is divided into multiple independent modules: manufacturer module for data entry, distribution module for data dissemination, and verification module for data validation. Each module handles specific functions, reducing overall system complexity while maintaining data transparency across the battery lifecycle.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A blockchain-based intermediary layer is introduced to mediate between manufacturers and end users. This intermediary ensures transparent and tamper-proof data transmission without requiring direct complex interactions between all system participants, thus improving data accessibility while managing system complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If comprehensive battery data is collected and stored, then data completeness and sustainability tracking are improved, but data security and privacy protection challenges increase

Engineering Contradiction:
Improvedata completenessVSAvoiddata security risks
Core Design Contradiction:
Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The system creates cryptographic copies of battery data stored on the blockchain. These immutable copies ensure data completeness and sustainability tracking while the original sensitive data remains secured at the manufacturer level, reducing security risks associated with centralized data storage.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The blockchain provides an inert, tamper-proof environment for storing battery data. Once data is written to the blockchain, it cannot be altered or deleted, ensuring data integrity and security while maintaining complete transparency of battery lifecycle information.

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

3Object-affected harmful factors

If multiple access levels are implemented for different user groups, then data security and controlled accessibility are improved, but system operation complexity increases

Engineering Contradiction:
Improvedata securityVSAvoidoperation simplicity
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

Different access levels are assigned to different user groups based on their specific needs: manufacturers have full access to enter and modify data, distributors have read-only access to disseminate data, and end users have access to verify battery information. This localized access control improves security while maintaining operational simplicity for each user type.

Inventive Principle:
Principle #3Local quality

4Reliability

If blockchain technology is integrated for secure data management, then data reliability and fraud detection are improved, but computational requirements and energy consumption increase

Engineering Contradiction:
Improvedata reliabilityVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system extracts only the essential battery data that requires immutable storage on the blockchain, while keeping detailed operational data at the manufacturer level. This selective approach maintains data reliability for critical information while minimizing the computational overhead and energy consumption associated with blockchain operations.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP4564258A1A manufacturer module for managing digital battery passports
Publication Date: 2025.06.04 BULL SA
  • EP4564258A1 patent drawingFigure 1
  • EP4564258A1 patent drawingFigure 2~3
  • EP4564258A1 patent drawingFigure 4~5

AI summary

The invention relates to a manufacturer module (10) for managing digital battery passports (DBP) in a management system (1), said manufacturer module (10) being configured to communicate with at least one battery manufacturer (MF) on a manufacturer communication link (MFL), said manufacturer module (10) comprising a creation submodule (110) configured to allow a battery manufacturer (MF) to create via said manufacturer communication link (MFL) a digital battery passport (DBP) for each type of electrical energy storage physical battery, said digital battery passport (DBP) comprising a set of information data related to said electrical energy storage physical battery, said set of information data comprising information about the manufacturer (MF) of the battery, about the composition of the battery and about the sustainability of the battery, and a manufacturer database (120) configured to store said created digital battery passport (DBP).