Battery Cell Frame Bonding Structure for Connection Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery designs face poor electrical connection stability due to relative position shifts between battery cells, despite the use of bonding agents, which are affected by temperature changes and vibration, leading to potential electrical connection failures.
Innovation Solution
A battery design incorporating a frame body with an accommodating cavity and a bonding agent that connects the battery cells to the frame body, limiting their displacement and deformation, thereby maintaining a stable relative position and improving electrical connection stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If battery cells are fixed by a bonding agent injected between adjacent battery cells, then the vibrating of battery cells is reduced, but relative position shift between battery cells still occurs due to temperature changes and bonding agent deformation
Solution Approach 1:
The frame body serves as an intermediary structure between the battery cells and the external environment. It provides a stable reference framework that limits the deformation range of bonding agents and prevents relative position shifts of battery cells, thereby maintaining electrical connection stability without requiring excessive bonding material.
Solution Approach 2:
The patent changes the physical state and distribution of the bonding agent by confining it within the frame body structure. The frame body restricts the bonding agent to specific regions, changing its effective parameters (position, deformation range) to prevent thermal expansion and contraction from causing cell displacement.
2Reliability
If bonding agent is used to connect battery cells, then electrical connection stability improves, but manufacturing cost and weight increase due to large amount of bonding agent required
Solution Approach 1:
The frame body divides the bonding agent into segmented regions, placing it only where structurally necessary. This segmentation allows the bonding agent to be concentrated at critical connection points between cells and the frame, rather than being distributed throughout the entire battery assembly, thereby reducing total material usage.
Solution Approach 2:
The frame body provides partial fixation by limiting battery cell movement through structural constraints, rather than requiring complete bonding between all surfaces. This partial action approach uses bonding agent only in essential locations, achieving sufficient stability without excessive material application.
3Stability of the object's composition
If bonding agent is used to fix battery cells, then relative displacement is reduced, but manufacturing complexity increases due to injection and curing processes
Solution Approach 1:
The frame body is pre-assembled with battery cells positioned within it before the bonding agent is applied. This preliminary arrangement of components within the frame structure simplifies the subsequent bonding process, as cells are already in their correct positions and orientations, reducing manufacturing complexity.
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
The solution effectively prevents relative displacement among battery cells, enhancing electrical connection stability and reducing manufacturing costs and weight by using a minimal amount of bonding agent, while also simplifying the manufacturing process.
Implementation Method 1
the bonding agent is arranged in the accommodating cavity, and the bonding agent is used to connect the plurality of battery cells and the frame body
Data Source
AI summary
Embodiments of the present application relate to the technical field of batteries, and in particular relates to a battery, an electric device, and a production method and a manufacturing die of the battery. The battery includes a frame body, a plurality of battery cells, and a bonding agent, where the frame body is provided with an accommodating cavity, and the accommodating cavity is provided with an opening in a first direction; the plurality of battery cells are arranged in the accommodating cavity, and electrode terminals of the plurality of battery cells face towards the opening; and the bonding agent is arranged in the accommodating cavity, and the bonding agent is used to connect the plurality of battery cells and the frame body. The battery provided by the present application can prevent or reduce a relative displacement among battery cells, and improve the electrical connection stability of the battery.