Battery Busbar Insulation Layout Against Cooling Condensation
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Solution Overview
Problem
Batteries face safety hazards in high-temperature and high-humidity environments due to the generation of condensed liquid, which can cause short-circuiting and corrosion of busbar components, leading to potential fires and explosions.
Innovation Solution
A battery design incorporating a signal transmission assembly with an insulation layer and busbar component, a cooling system between adjacent battery cell rows, and a blocking member to prevent condensed liquid from reaching the busbar component, using a blocking member formed from the insulation layer to protrude into the gap between cell rows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a conventional battery structure with a single electrolyte is used, then the battery structure is simple, but the battery cannot achieve high voltage operation due to safety concerns with highly concentrated electrolytes
Solution Approach 1:
The battery is divided into multiple battery cells, each with its own electrolyte solution and separator. This segmentation allows each cell to operate at lower, safer voltages while the overall battery achieves high voltage through series connection of multiple cells, resolving the contradiction between high power output and safety reliability.
Solution Approach 2:
A separator is introduced as an intermediary component between adjacent battery cells. This separator prevents direct contact between electrolytes of different cells while allowing ionic conduction, enabling high voltage operation through series connection without compromising safety. The separator acts as a mediator that allows the system to achieve higher voltage while maintaining reliability.
2Power
If highly concentrated electrolyte is used to achieve high voltage, then the battery power increases, but the risk of short circuit and safety hazards increases
Solution Approach 1:
The battery system is segmented into multiple independent cells, each using concentrated electrolyte safely. This segmentation isolates the high-concentration electrolyte in separate compartments with separators, preventing short circuits while maintaining the high voltage capability needed for power output.
Solution Approach 2:
The separator serves as an intermediary that physically separates concentrated electrolytes in adjacent cells while maintaining ionic connectivity. This intermediary structure enables the use of highly concentrated electrolyte for high power output without the short circuit risks that would arise from direct contact between concentrated electrolytes.
3Power
If multiple battery cells are connected in series to achieve high voltage, then the battery power increases, but the device complexity increases
Solution Approach 1:
Multiple battery cells are merged into a single integrated battery structure with shared outer packaging and coordinated separator arrangement. This merging approach achieves high voltage through series connection while minimizing the increase in device complexity by consolidating common components and using a unified structural design.
Solution Approach 2:
The separator structure is designed to serve multiple functions simultaneously: it separates adjacent battery cells, prevents short circuits, and enables ionic conduction for series connection. This multi-functionality reduces the need for additional components, thereby increasing power through series connection while limiting the increase in device 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
Enhances safety by preventing short-circuiting and corrosion, thereby reducing the risk of fires and explosions, and improving battery life by blocking condensed liquid from reaching the busbar component.
Implementation Method 1
a separator (144) between the adjacent battery cells (100)
Implementation Method 2
Each of the battery cells (100) is filled with a highly concentrated electrolyte
Data Source
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AI summary
The embodiments of the present application provide a battery, comprising: a battery cell group (110) comprising N battery cell rows (113) arranged in a first direction, battery cells (20) in each battery cell row (113) being arranged in a second direction, the first direction being perpendicular to the second direction; a signal transmission assembly (120) provided on the first face (101) of the battery cell group (110) and comprising a busbar component (121) and an insulation layer (122), the busbar component (121) being configured to be electrically connected to the battery cells (20) at holes (123) of the insulation layer (122); and a cooling system (130) provided between two adjacent battery cell rows (113) in the N battery cell rows (113), with a blocking member (140) being provided at an opening, facing the first face (101), of a gap between the two adjacent battery cell rows (113) to block the opening to prevent condensed liquid generated by the cooling system (130) from reaching the busbar component (121). According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.