Laminated Cell Formation on Battery Casing

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Solution Overview

Problem

The battery production process is inefficient due to the need to separately manufacture a cell and then assemble it in a casing, which complicates the assembly process and affects efficiency.

Innovation Solution

A battery manufacturing method that involves providing a first casing with an upper cover or bottom plate and laminating a cell on it, eliminating the need to move the laminated cell for subsequent sealing by forming a laminated cell directly on the casing, thereby improving production efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the cell is separately manufactured and then assembled in the casing, then the manufacturing process allows for separate quality control of cell and casing, but the assembly process becomes complex and production efficiency decreases

Engineering Contradiction:

Improvequality controlVSAvoidproduction efficiency

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The patent merges the cell manufacturing process and casing assembly process into a single integrated operation. The laminated cell is formed directly within the casing structure, eliminating the need for separate cell manufacturing and subsequent assembly. This integration maintains quality control while significantly improving production efficiency by reducing process steps and handling operations.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The casing is prepared in advance with the necessary structure and positioning features before the cell lamination process begins. The casing includes pre-formed compartments and positioning elements that guide the cell lamination process, allowing quality control to be maintained while streamlining the overall manufacturing flow and improving productivity.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If the laminated cell is formed separately and then moved to the casing for sealing, then the cell can be manufactured independently, but the cell movement and assembly complexity increase

Engineering Contradiction:

Improveindependent cell manufacturingVSAvoidassembly complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the cell manufacturing and casing assembly operations into a single integrated process. The laminated cell is formed directly within the casing structure, eliminating the need for separate cell manufacturing and subsequent handling. This approach reduces assembly complexity while maintaining the flexibility to manufacture cells with different configurations.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The casing is divided into functional zones that accommodate different cell configurations. The casing structure includes separate compartments and positioning features that allow for flexible cell arrangement while maintaining a simple integrated manufacturing process. This segmentation enables adaptability without increasing assembly complexity.

Inventive Principle:

Principle #1Segmentation

3Reliability

If the cell is assembled separately and then sealed in the casing, then the sealing process can be optimized independently, but the overall assembly process time increases

Engineering Contradiction:

Improvesealing qualityVSAvoidassembly process time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent merges the cell assembly and sealing operations into a single simultaneous process. The laminated cell is formed and sealed within the casing structure in one continuous operation, eliminating the time required for separate assembly and sealing steps. This integration maintains sealing quality while significantly reducing the overall process time.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The casing is pre-prepared with sealing structures and positioning features before the cell lamination process begins. The sealing surfaces and clamping mechanisms are in place beforehand, allowing the cell to be laminated and sealed in a single continuous operation without intermediate handling or setup time.

Inventive Principle:

Principle #10Preliminary action

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

This method enhances manufacturing efficiency by eliminating the need for cell movement and assembly complexity, ensuring the laminated cell is securely formed and sealed within the casing without the risk of disassembly, thus improving product yield and simplifying the assembly process.

Implementation Method 1

The separator film is disposed between the first pole piece and the second pole piece

Methodology Applied

Scientific EffectPhysical separation:

Implementation Method 2

laminating on the first casing to form a laminated cell

Methodology Applied

Scientific EffectStructural integrity:

Data Source

PatentEP4089774A1Battery manufacturing method and battery

Publication Date: 2022.11.16 CALB GROUP CO LTD

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AI summary

The disclosure relates to the technical field of batteries, and provides a battery manufacturing method and a battery. The battery manufacturing method includes the following steps. Providing a first casing (40) that includes one of an upper cover and a bottom plate of a battery casing, and laminating on the first casing (40) to form a laminated cell (20).