Battery Cell Group Terminal Fixing for Deformation-Resistant Connections
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Solution Overview
Problem
Connections of electrode terminals in electrochemical apparatuses are prone to deformation due to stress during use and transport, affecting the stability and functionality of the apparatus.
Innovation Solution
The electrochemical apparatus is designed with battery cells grouped into M cell groups, where each group has electrode terminals connected by conductive members, and fixed by first and second fixing members on opposite sides, providing protection and stability to the terminals and connection areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrode terminals are connected by conductive members during use and transport, then the electrochemical apparatus can function and be transported, but the connections are prone to deformation due to stress
Solution Approach 1:
The patent applies beforehand cushioning by introducing fixing members that pre-establish protective structures around electrode terminals and conductive members. These fixing members create protective cavities and provide structural support before stress occurs during transport or use, preventing deformation of the connections rather than correcting it after deformation occurs.
Solution Approach 2:
The patent employs flexible protective structures through fixing members that can accommodate thermal expansion and contraction of battery cells while maintaining connection stability. The fixing members create flexible yet protective enclosures around the conductive members and electrode terminals, allowing movement without deformation of the electrical connections.
2Reliability
If fixing members are added to protect electrode terminals and conductive members, then connection stability is improved, but device complexity increases
Solution Approach 1:
The fixing members serve multiple functions simultaneously: they provide structural support for electrode terminals, protect conductive members, maintain spatial arrangement of battery cells, and create protective cavities. This multi-functionality reduces the need for separate protective components, thereby limiting the increase in device complexity while achieving comprehensive protection.
Solution Approach 2:
The patent merges the protective function with the structural support function by integrating the fixing members into the overall battery assembly structure. Rather than adding separate protective elements, the fixing members are combined with the structural framework that holds battery cells, consolidating multiple protective and structural roles into unified components.
Data Source
AI summary
An electrochemical apparatus, includes N battery cells divided into M battery cell groups, battery cells in each battery cell groups are arranged in a first direction, and the M battery cell groups are arranged in the first direction; each battery cell includes a battery cell housing and two electrode terminals; in the first direction, electrode terminals of two adjacent battery cell groups are connected by a conductive member, and connection areas are formed on the conductive members; a first fixing member is bonded to at least part of an electrode terminal on the first side of the battery cell group, and/or a second fixing member is bonded to at least part of the electrode terminal on the second side of the battery cell group.