Battery Core Spacer Structure for Vibration-Stable Series Connections
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Solution Overview
Problem
In existing batteries, multiple electrode cores connected in series are prone to distortion, breakage, and relative displacement due to vibration, leading to damage and safety issues.
Innovation Solution
The use of an insulating spacer with a through hole between electrode core assemblies, connected via a metal member to the housing, enhances fixation and prevents movement, ensuring secure connections and improved mechanical strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple electrode cores are connected in series in a metal housing to improve battery capacity, then the battery capacity increases, but the connecting parts become prone to distortion and breakage
Solution Approach 1:
An insulating spacer is introduced as an intermediary component between electrode core assemblies. The spacer includes a through hole that accommodates connecting parts, providing structural support and isolation. This mediator prevents direct contact between adjacent electrode cores while maintaining secure connection, resolving the contradiction between increasing battery capacity through series connection and preventing connecting part failure.
2Quantity of substance
If multiple electrode cores are connected in series to increase battery capacity, then the battery capacity improves, but the connecting parts become prone to breaking under vibration and jolt
Solution Approach 1:
The insulating spacer acts as a mediator that absorbs and distributes mechanical stress from vibration and jolt. By accommodating connecting parts within its through hole and providing structural support, the spacer protects these critical connections from breaking under dynamic loads, thereby improving reliability while maintaining the series connection configuration for high capacity.
3Quantity of substance
If multiple electrode cores are arranged in series to improve battery capacity, then the battery capacity increases, but the electrode cores are prone to relative displacement causing damage
Solution Approach 1:
The insulating spacer serves as a stable intermediary structure that maintains fixed positions of adjacent electrode core assemblies. The through hole in the spacer provides a defined accommodation space for connecting parts, preventing relative displacement between electrode cores. This mediator ensures positional stability while allowing the series connection arrangement necessary for high battery capacity.
4Quantity of substance
If connecting parts are used to connect electrode cores in series, then battery capacity increases, but the connecting parts are prone to distortion and breakage
Solution Approach 1:
The insulating spacer merges multiple functions into a single component: it provides electrical insulation between electrode cores, mechanically supports connecting parts through its through hole, and maintains structural integrity under vibration and jolt. This consolidation simplifies the overall connection structure while enabling series connection for high battery capacity, resolving the contradiction between capacity increase and structural complexity.
Data Source
AI summary
A battery includes a housing and multiple electrode core assemblies in the housing. The electrode core assemblies are connected. Each electrode core assembly includes an encapsulation film and an electrode core arranged in an accommodating cavity defined by the encapsulation film. An insulating spacer is arranged between two connected electrode core assemblies and has a through hole. The electrode core assembly includes a first electrode and a second electrode. The first electrode of one electrode core assembly is connected to the second electrode of the other electrode core assembly of the connected two electrode core assemblies at a connecting part accommodated in the through hole. The insulating spacer includes a peripheral surface facing an inner surface of the housing. A metal member is arranged on the peripheral surface of the insulating spacer. The metal member is connected to the housing to fix the insulating spacer with the housing.