Parallel Battery Cell Architecture for Mixed Cathode Materials

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Solution Overview

Problem

The mixing of ternary and lithium-manganese materials in batteries leads to processing issues such as gelling, clogged filter elements, and poor particle dispersion, affecting energy density and service life.

Innovation Solution

The battery design includes separate first and second battery cells, with the first using a ternary material and the second using a lithium-containing phosphate, connected in parallel to avoid direct mixing and leverage the advantages of both materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If ternary material and lithium-manganese material are mixed together, then energy density can be improved, but processing problems such as gelling, clogged filter elements, and poor particle dispersion occur

Engineering Contradiction:

Improveenergy densityVSAvoidprocessing quality

Core Design Contradiction:

Use of energy by moving objectVSEase of manufacture

Solution Approach 1:

The patent divides the battery into multiple battery cells, where each cell contains either ternary material or lithium-manganese material, but not both mixed together. This segmentation allows each material to be processed separately according to its own requirements, avoiding gelling and filter clogging issues, while the overall battery achieves high energy density through the combination of different material types in different cells.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If ternary material and lithium-manganese material are mixed together, then various material properties can be combined, but particle dispersion becomes poor

Engineering Contradiction:

Improvematerial property combinationVSAvoidparticle dispersion

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

By separating the battery into multiple cells with different positive electrode materials, the patent maintains stable and uniform particle dispersion within each cell. The ternary material cells and lithium-manganese material cells each have homogeneous compositions without the dispersion problems that would arise from mixing materials with different properties in the same cell.

Inventive Principle:

Principle #1Segmentation

3Ease of manufacture

If separate battery cells with different materials are used, then processing problems are avoided, but device complexity increases

Engineering Contradiction:

Improveprocessing qualityVSAvoidbattery structure

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent combines multiple battery cells with different positive electrode materials (ternary and lithium-manganese) into a single battery pack with a unified structure. The cells are connected in parallel through a current collector arrangement, creating a integrated battery system that avoids processing problems while maintaining manageable complexity through standardized cell design and assembly.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20250239607A1Battery and electrical device with battery

Publication Date: 2025.07.24 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

AI summary

This application provides a battery and an electrical device with the battery. The battery includes: a first battery cell, where the first battery cell includes a first positive electrode material; and a second battery cell, where the second battery cell includes a second positive electrode material. The first battery cell and the second battery cell are connected in parallel to form the battery. The first positive electrode material includes a ternary material. The second positive electrode material includes a lithium-containing phosphate.