Battery Stack Insulator Baffle for Condensation Corrosion Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional battery modules experience conduction and electrolytic corrosion due to condensation water accumulation between adjacent batteries, leading to electrical conductivity and corrosion issues.
Innovation Solution
An energy storage apparatus with a stacked product design featuring a holder and insulator system that includes a rib with a baffle to prevent water-induced conduction between adjacent energy storage devices, utilizing insulating properties to reduce or prevent electrolytic corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional restraint member with an opening is used to hold batteries, then the structure is simple and easy to manufacture, but condensation water accumulates at the opening peripheral portion causing conduction and electrolytic corrosion between adjacent batteries
Solution Approach 1:
An insulator with a rib and baffle is introduced as an intermediary component between the holder and adjacent energy storage devices. The rib extends along the opening peripheral portion, and the baffle protrudes to block condensation water from reaching the contact position, preventing conduction and electrolytic corrosion without requiring fundamental changes to the holder structure
Solution Approach 2:
The insulator is segmented into distinct functional components: a body portion, a rib extending from the body, and a baffle protruding from the rib. This segmentation allows each component to perform its specific function - the rib provides structural support and positioning, while the baffle specifically blocks water accumulation, enabling targeted protection against corrosion
2Object-affected harmful factors
If condensation water is allowed to flow down along the battery surface, then heat dissipation is improved, but water accumulates at the contact position causing electrical conduction and corrosion
Solution Approach 1:
The baffle is positioned locally at the critical contact position where condensation water tends to accumulate, rather than blocking the entire surface. This localized intervention prevents water-induced conduction at the specific harmful contact point while allowing condensation water to continue flowing down along the battery surface for heat dissipation purposes
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 reduces or prevents conduction and electrolytic corrosion between adjacent energy storage devices by directing water away from contact points, ensuring reliable operation and safety.
Implementation Method 1
an insulator to insulate between the stacked product and the extension
Implementation Method 2
a baffle that is convex on one side in a third direction perpendicular to the first direction and the second direction, and a portion of the baffle is between adjacent ones of the plurality of energy storage devices
Data Source
AI summary
An energy storage apparatus includes a stack including energy storage devices arranged in a first direction, a holder holding the stack and including an extension extending from a first end of the stack to a second end of the first direction of the stack along an end of the stack in a second direction perpendicular to the first direction, and an insulator that insulates between the stack and the extension and includes an insulator body that extending along an opposing surface of the stack in the extension, and a rib extending from the insulator body in the second direction to contact with the stack, the rib extending between two of the energy storage devices and including a baffle that is convex on one side in a third direction perpendicular to the first and second directions, and the baffle is between the energy storage devices adjacent in the first direction.