Battery Pack Assembly With Separate Battery and Capacitor Housings

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Solution Overview

Problem

The existing lithium thionyl chloride battery solutions suffer from complex assembly processes, quality risks, and safety issues due to glue filling and soldering, which affect production efficiency and cost-effectiveness.

Innovation Solution

A battery structure design comprising two separate housings for a battery and a capacitor, with electrical connections through positive and negative output members, eliminating the need for glue filling and sealing, and allowing for a simpler assembly process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If glue filling and sealing processes are used to connect battery and capacitor, then electrical connection is achieved, but production time increases and quality risks arise

Engineering Contradiction:
ImprovequalityVSAvoidproduction time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent extracts and eliminates the glue filling and sealing processes from the battery assembly line. By using a mechanical connection structure with conductive components that directly connect the battery and capacitor housings, the patent removes the time-consuming and quality-risk-prone adhesive processes while maintaining electrical connectivity and structural integrity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the chemical bonding mechanism (glue filling) with a mechanical connection system. The connection structure includes conductive elements and mechanical fastening components that physically connect the battery and capacitor housings, eliminating the need for adhesive materials and curing time while ensuring reliable electrical and mechanical connection.

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

2Reliability

If improper gluing and soldering processes are used, then electrical connection is achieved, but quality risks and safety problems increase

Engineering Contradiction:
ImprovesafetyVSAvoidproduction process
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent removes the soldering process entirely from the manufacturing workflow by designing a mechanical connection system with integrated conductive components. This eliminates the quality risks and safety problems associated with improper soldering while maintaining reliable electrical connection between the battery and capacitor.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the thermal and chemical processes of soldering with a mechanical connection approach. The connection structure uses conductive metal elements and mechanical fastening that require no heat application or chemical flux, thereby eliminating soldering-related quality risks and safety hazards while simplifying the manufacturing process.

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

3Ease of manufacture

If conventional battery assembly with glue filling is used, then battery is manufactured, but production cost increases

Engineering Contradiction:
ImprovemanufacturingVSAvoidproduction cost
Core Design Contradiction:
Ease of manufactureVSQuantity of substance

Solution Approach 1:

The patent extracts and eliminates the adhesive materials and associated processing steps from the manufacturing process. By using a mechanical connection structure with conductive components, the patent removes the cost of adhesive materials, curing equipment, and quality inspection for adhesive bonds, thereby reducing overall production costs while maintaining manufacturing capability.

Inventive Principle:
Principle #2Taking out (Extraction)

4Reliability

If complex assembly processes with multiple steps are used, then battery structure is assembled, but productivity decreases

Engineering Contradiction:
Improveassembly qualityVSAvoidproduction efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent merges multiple separate assembly steps into a single integrated operation. The connection structure combines mechanical fastening and electrical connection functions into one component system, allowing simultaneous achievement of structural assembly and electrical connectivity in a single manufacturing step, thereby eliminating sequential process steps and improving productivity.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4679559A1Battery structure and battery pack
Publication Date: 2026.01.14 EVE ENERGY CO LTD
  • EP4679559A1 patent drawingFigure 1
  • EP4679559A1 patent drawingFigure 2
  • EP4679559A1 patent drawingFigure 3

AI summary

Provided are a battery structure and a battery pack. The battery structure includes a first housing (1) and a battery (11) assembled within the first housing (1); and a second housing (2) and a capacitor (21) assembled within the second housing (2). A positive terminal of the battery (11) is provided with a first positive output member (12), and a cover plate of the battery (11) serves as a negative terminal of the battery (11). A positive terminal of the capacitor (21) is provided with a second positive output member (22), and a negative terminal of the capacitor (21) is provided with a negative output member (23).