Segmented Magnetizer Structure for Wider Graphite Orientation

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Solution Overview

Problem

Conventional magnetizers face limitations in size and orientation performance due to the arrangement of permanent magnets with alternating polarities, leading to inadequate magnetic field coverage and difficulty in maintenance.

Innovation Solution

A magnetizer design featuring first and second frame members with aligned magnets of the same polarity, coupled by magnetic force, allowing for increased vertical magnetization area and easy separation for maintenance, enhancing graphite orientation in the magnetic field.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the size of the permanent magnet is increased to improve orientation performance, then the magnetic field coverage is improved, but the magnetization orientation cannot be properly achieved during manufacturing

Engineering Contradiction:
Improvemagnetic field coverage areaVSAvoidmagnetization orientation precision
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

The patent divides the magnetizer into multiple smaller permanent magnets (first permanent magnets and second permanent magnets) arranged in alternating polarity patterns, rather than using a single large magnet. This segmentation allows each small magnet to be manufactured with precise magnetization orientation while collectively providing extensive magnetic field coverage through their arranged configuration.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If multiple permanent magnets are arranged to increase magnetic field coverage, then orientation performance is improved, but the device complexity increases

Engineering Contradiction:
Improvemagnetic field coverage areaVSAvoidmagnetizer structure complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent combines multiple permanent magnets with alternating polarities into a unified magnetizer structure where the magnets are closely arranged to function as an integrated system. The first and second permanent magnets are positioned adjacent to each other, creating a combined magnetic field that provides extensive coverage while maintaining relatively simple overall structure.

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If conventional magnetizer design is used, then the structure is simple, but the orientation performance is insufficient

Engineering Contradiction:
Improvemagnetizer structure simplicityVSAvoidgraphite orientation precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The patent enhances the magnetic field generation by arranging permanent magnets in a multi-dimensional configuration with alternating polarities, creating a more complex three-dimensional magnetic field pattern. This dimensional arrangement of magnets with different orientations (first permanent magnets and second permanent magnets with opposite polarities) significantly improves graphite orientation precision while maintaining reasonable structural simplicity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The improved magnetizer design achieves stronger magnetic field orientation, reducing lithium ion movement resistance and improving battery performance, with easier maintenance through magnetic coupling without fastening means.

Implementation Method 1

a magnetizing step S12 of orienting graphite to a magnetic field

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

passing the negative electrode coating layer over a magnetizer containing a powerful permanent magnet

Methodology Applied
Scientific EffectMagnetism: Magnetism

Implementation Method 3

configured to maintain a state of being in contact with the first frame member by an attractive force between the two or more first magnets and the two or more second magnets

Methodology Applied
Scientific EffectMagnetic force: Magnetism

Data Source

PatentUS20250349452A1magnetizer
Publication Date: 2025.11.13 SAMSUNG SDI CO LTD
  • US20250349452A1 patent drawing
  • US20250349452A1 patent drawing
  • US20250349452A1 patent drawing

AI summary

A magnetizer may include a first frame member including a first accommodation portion configured to accommodate two or more first magnets arranged along a first direction with a same first polarity, and a second frame member including a second accommodation portion configured to accommodate two or more second magnets arranged with a second polarity different from the first polarity, and configured to maintain a state of being in contact with the first frame member by an attractive force between the two or more first magnets and the two or more second magnets.