Battery Electrode Profile Prediction for Non-Destructive Degradation Analysis

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Solution Overview

Problem

Existing methods for obtaining positive and negative electrode profiles of battery cells are time-consuming and risky, often requiring disassembly and reassembly, which can lead to explosions.

Innovation Solution

A battery management apparatus and method that generates positive electrode profiles non-destructively by adjusting a preset negative electrode profile, using a measuring unit to measure voltage and capacity, a profile generating unit to create a battery profile, and a control unit to derive conversion functions for predicting future profiles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional disassembly method is used to obtain electrode profiles, then measurement precision is improved, but productivity deteriorates and safety deteriorates

Engineering Contradiction:
Improveprofile measurement accuracyVSAvoidprofile generation speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent uses a neural network model trained on disassembled electrode data to generate synthetic electrode profiles without actual disassembly. The model learns from a dataset of positive and negative electrode profiles obtained through conventional methods, then reproduces these profiles computationally, achieving both accuracy and speed by replacing physical disassembly with digital simulation.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent performs preliminary training of the neural network model using a dataset of electrode profiles obtained through conventional disassembly methods. This pre-trained model can then rapidly generate profiles for degraded batteries without requiring actual disassembly, thus improving productivity while maintaining measurement precision through the learned patterns.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If conventional disassembly method is used to obtain electrode profiles, then measurement precision is improved, but safety deteriorates

Engineering Contradiction:
Improveprofile measurement accuracyVSAvoidbattery safety
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent replaces physical disassembly with computational copying through neural network simulation. The model generates synthetic electrode profiles that replicate the characteristics of actual electrodes without requiring physical access to the battery internals, thereby eliminating explosion risks while maintaining profile accuracy through learned electrochemical patterns.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent introduces a neural network model as an intermediary between the battery and the profile measurement process. Instead of directly disassembling the battery, the model acts as a mediator that processes battery data and generates electrode profiles computationally, thus protecting against safety hazards while achieving measurement objectives.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If direct measurement method is used for degraded batteries, then measurement precision is improved, but productivity deteriorates

Engineering Contradiction:
Improvedegradation analysis accuracyVSAvoidprofile generation time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent uses the neural network model to copy and reproduce electrode profiles for degraded batteries based on overall battery profile data and degradation indicators. This computational approach eliminates time-consuming disassembly and reassembly processes while maintaining profile accuracy through the model's learned understanding of electrode behavior under various degradation conditions.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces the mechanical disassembly and physical measurement system with a computational neural network system. The neural network processes battery data and generates electrode profiles through algorithms rather than physical manipulation, significantly reducing time loss while maintaining measurement precision through sophisticated pattern recognition.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12620641B2Battery management apparatus and method
Publication Date: 2026.05.05 LG ENERGY SOLUTION LTD
  • US12620641B2 patent drawing
  • US12620641B2 patent drawing
  • US12620641B2 patent drawing

AI summary

A battery management apparatus includes: a measuring unit to measure voltage and capacity of a battery cell; a profile generating unit to generate a battery profile representing a correspondence between the voltage and the capacity measured by the measuring unit and generate a positive electrode profile of the battery cell based on the generated battery profile and a reference negative electrode profile and a reference negative electrode differential profile preset for the battery cell; and a control unit configured to receive the generated positive electrode profile from the profile generating unit, derive a conversion function representing conversion information from the reference positive electrode profile to the generated positive electrode profile, generate a positive electrode prediction profile for the battery cell from the reference positive electrode profile based on the derived conversion function, and generate a battery prediction profile for the battery cell based on the generated positive electrode prediction profile.