Battery End Plate Adhesive Injection for Clean Accumulator Bonding
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Solution Overview
Problem
Existing battery assembly methods face challenges in avoiding adhesive pollution of electrical contact zones and are not easily automatable, leading to potential mechanical failures under pressure variations, especially in aerospace applications.
Innovation Solution
A method involving an end plate with through cells and adhesive injection orifices connected via supply channels, allowing precise adhesive injection to bond accumulators without contaminating electrical contacts, and enabling automated assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive is applied on the accumulators or on the wall of the cells, then bonding between accumulators and end plate is achieved, but electrical contact zones are polluted by adhesive
Solution Approach 1:
The invention segments the adhesive application process by using separate injection orifices positioned at specific distances from the cell walls. The adhesive is injected through channels that deliver it precisely to the bonding interface without contacting the electrical contact zones, thus segmenting the adhesive path from the sensitive electrical areas.
Solution Approach 2:
The invention introduces intermediary elements (injection orifices and supply channels) that mediate the adhesive delivery process. These intermediaries enable controlled adhesive application to the bonding interface while preventing direct contact with electrical contact zones, thus protecting the electrical areas from pollution.
2Strength
If bonding method is used to connect accumulators to end plate, then mechanical strength is improved, but automation is difficult and implementation cost increases
Solution Approach 1:
The invention replaces manual bonding operations with an automated injection system. The supply channels and injection orifices enable precise adhesive delivery through automated dispensing equipment, substituting manual mechanical bonding processes with automated fluid delivery systems that can be easily programmed and controlled.
3Strength
If adhesive is applied in traditional bonding methods, then mechanical connection is achieved, but air is trapped at the adhesive cordon leading to sudden breakage under pressure variations
Solution Approach 1:
The invention performs preliminary action by designing the supply channels and injection orifices to control adhesive flow in a way that prevents air entrapment from the beginning. The channels are configured to allow air escape paths, and the injection process is designed to fill areas sequentially, preventing vacuum formation and air bubbles that would compromise reliability under pressure variations.
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 ensures reliable mechanical connection, reduces labor costs through automation, and prevents air trapping, maintaining bonding strength under pressure variations, enhancing the reliability of batteries for aerospace applications.
Implementation Method 1
the injection of adhesive through the injection orifice, the adhesive flowing in the channel up to the recess
Data Source
AI summary
A method for assembling a battery including:providing an end plate having at least one through cell for an accumulator and at least one adhesive injection orifice distant from the cell, the adhesive injection orifice being in fluidic communication via a supply channel with a recess of an inner wall of the cell,placing the accumulator in the cell,injecting adhesive through the injection orifice, the adhesive flowing in the channel up to the recess, the accumulator being bonded to the end plate by the adhesive contained in the recess.