Battery Connection Plate Openings for Precise Binder Bonding
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Solution Overview
Problem
Existing battery production processes face issues with binder overflow or insufficient bonding due to inconsistent gaps between connection plates and battery cells, leading to interference with other components and reduced reliability.
Innovation Solution
A connection plate with first and second openings allows controlled binder injection, enabling precise bonding by adjusting the amount of binder applied, and allowing independent installation of the connection plate and battery cell into the battery box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If binder is applied to bond connection plate to battery cell, then bonding strength is improved, but binder overflow occurs and interferes with other components
Solution Approach 1:
The connection plate is pre-installed in the battery box before battery cells are placed. The first opening is pre-formed on the connection plate, allowing binder to be injected through the second opening and controlled to flow out through the first opening only when needed, preventing premature overflow and interference with other components.
Solution Approach 2:
The first opening acts as an intermediary controlled outlet between the binder injection point (second opening) and the bonding interface. It regulates binder flow, allowing precise control over the amount of binder applied to the battery cell, thus achieving strong bonding without harmful overflow.
2Reliability
If binder amount is increased to ensure sufficient bonding, then bonding reliability is improved, but binder overflow and interference with other components occurs
Solution Approach 1:
The first opening provides visual and physical feedback during the bonding process. As binder is injected through the second opening, its flow through the first opening indicates the bonding status. The operator can observe binder emergence and adjust injection to achieve complete filling without excess, ensuring reliable bonding while preventing overflow interference.
Solution Approach 2:
The first opening serves as a controlled intermediary that regulates binder delivery. It enables precise metering of binder amount, allowing sufficient bonding material to reach the connection interface without uncontrolled overflow that would interfere with other battery components.
3Manufacturing precision
If connection plate and battery cell are installed together as one unit, then bonding consistency is improved, but installation difficulty and reduced production efficiency occur
Solution Approach 1:
The installation process is segmented into independent steps: first the connection plate is installed in the battery box, then battery cells are separately placed and bonded. This segmentation allows each component to be positioned independently with proper alignment, ensuring bonding consistency while simplifying installation and improving production efficiency.
Solution Approach 2:
The connection plate is pre-installed and positioned in the battery box before battery cells are added. This preliminary action establishes a fixed reference structure, making subsequent cell installation and bonding easier to align consistently while allowing separate handling that improves production efficiency.
Data Source
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AI summary
Embodiments of this application provide a connection plate of a battery, a battery, an electric apparatus, and a manufacturing method for a battery. The connection plate of a battery includes two first surfaces and a second surface. The two first surfaces are oppositely disposed along a thickness direction of the connection plate. The first surface is configured to be bonded to a battery cell via a binder. At least one first surface is provided with a first opening. The second surface connects the two first surfaces and the second surface is provided with a second opening, where the second opening is in communication with the first opening. Providing the first opening and the second opening allows a path to exist on the first surface of the connection plate facing the battery cell, the path being in communication with the second surface on a side of the connection plate. This enables injection of the binder through the second surface into the first surface, facilitating bonding of the first surface to the battery cell. This approach allows control over the amount of the binder used during bonding of the first surface to the battery cell, improving the accuracy of the amount of binder.