Battery Ledger Architecture for Cross-Operator Lifecycle Traceability

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Solution Overview

Problem

Existing battery management systems lack a unified system for tracking the entire lifecycle of batteries, including production, usage, reuse, and recycling, due to the lack of a standardized battery product code that integrates information across different business operators.

Innovation Solution

A battery ledger management system that assigns a unique battery ID to each unit, collecting and managing production, state, and usage information throughout the battery's lifecycle, using a data collecting device, battery ID generation, and management units, and a server to track and update information across various stages.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a battery product code is issued by a battery manufacturer for producing products, then product production is facilitated, but the system becomes fragmented for each business operator and cannot manage the entire lifecycle of the battery

Engineering Contradiction:
Improveproduct productionVSAvoidsystem fragmentation
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent implements a universal battery ledger management system that serves multiple functions across the entire battery lifecycle. The system manages battery production information, usage information, state information, and recycling information through a single unified platform. The battery ledger management server collects and stores comprehensive data from various sources including battery manufacturers, data collecting devices, and external sources, enabling one system to handle multiple lifecycle stages rather than having separate systems for each business operator.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If separate systems are used for each business operator, then each operator can manage their own processes, but information on the entire lifecycle of the battery cannot be integrated

Engineering Contradiction:
Improveoperator autonomyVSAvoidlifecycle information integration
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The patent merges multiple separate information systems into a single battery ledger management system. The system integrates production information from battery manufacturers, usage information from data collecting devices, and additional data from external sources into one unified database. The battery ledger management server consolidates these diverse information sources, allowing all business operators to access and contribute to a shared ledger that contains the complete lifecycle information of each battery.

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If no unique battery ID is assigned, then system implementation is simpler, but tracking and managing battery information throughout the lifecycle becomes inefficient

Engineering Contradiction:
Improvesystem implementationVSAvoidbattery management efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent implements preliminary action by assigning a unique battery ID to each battery at the very beginning of its lifecycle, during the production stage. This battery ID is generated and registered in the battery ledger management system before the battery enters service. By establishing this unique identifier upfront, the system enables efficient tracking and management of the battery throughout all subsequent stages including usage, state monitoring, and recycling, without requiring complex retroactive identification systems.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4116142B1Battery ledger management system and method of battery ledger management
Publication Date: 2025.09.03 SK ON CO LTD
  • EP4116142B1 patent drawingFigure 1
  • EP4116142B1 patent drawingFigure 2
  • EP4116142B1 patent drawingFigure 3

AI summary

A battery ledger management system, includes: a data collecting unit receiving battery production information from an external source, and receiving battery information data and vehicle information data from a data collecting device; a battery ID generation and management unit generating a unique battery ID for each battery unit based on the battery production information; a state information generation and management unit generating and managing state information, information on a current usage state of the battery for the battery ID of each battery unit using the battery information data and the vehicle information data; and a usage information generation and management unit generating and managing usage information, information on a usage history of the battery for the battery ID of each battery unit using the battery information data and the vehicle information data.