Battery Terminal Plug Receptacle Structure for Bus Bar Elimination
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Solution Overview
Problem
Existing battery technologies face challenges in efficiently connecting multiple battery cells in series and parallel configurations without using bus bars, which can lead to complex and costly assembly processes, and may compromise sealability and safety due to uneven terminal pressures.
Innovation Solution
The battery design incorporates complementary plug and receptacle type terminal structures that project through the case, allowing for direct contact and connection of cells in series and parallel configurations, with insulation gaskets to prevent electrical shorts and enhance sealability, using a case with a rectangular bottom surface and sidewalls to house the electrode assembly and electrolyte.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If bus bars are used to connect battery cells, then electrical connections can be established, but the assembly process becomes complex and costly
Solution Approach 1:
The invention extracts and eliminates the bus bar component from the battery connection system. Instead of using separate bus bars to connect battery cells, the terminal structure is integrated directly into the battery case, allowing cells to be connected through direct contact of complementary terminal structures protruding from adjacent cells.
Solution Approach 2:
The invention merges the terminal function with the battery case structure. The terminal structures are integrated into the case itself rather than being separate components, combining the housing and electrical connection functions into a unified structure that simplifies assembly.
2Reliability
If bus bars are used for battery cell connections, then electrical connectivity is achieved, but sealability and safety are compromised due to uneven terminal pressures
Solution Approach 1:
The invention applies local quality by designing complementary terminal structures with specific geometries (protruding and recessed portions) that concentrate contact forces at defined locations. This localized contact geometry ensures uniform pressure distribution at the connection interface, improving sealability and safety while maintaining manufacturing simplicity.
3Adaptability or versatility
If multiple battery cells are connected in series and parallel configurations, then battery capacity and power requirements are met, but the assembly process becomes complex without standardized connection structures
Solution Approach 1:
The invention creates universal connection structures with complementary protruding and recessed terminal portions that can accommodate various series and parallel configurations. These standardized multi-functional terminals enable the same basic structure to be used across different battery pack configurations, enhancing adaptability while reducing assembly complexity.
Data Source
AI summary
A battery includes a case, an electrode assembly located within the case and comprising first and second electrodes, a first terminal electrically connected with the first electrode, and a second terminal electrically connected with the second electrode. The first and second terminals project through the case. One of the first and second terminals has first and second connection formations. The first and second connection formations have mutually different shapes and are located on respectively different aspects of the case.