Modular Battery Sub Pack With Dual BMS Assembly Layout
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Solution Overview
Problem
Existing battery pack designs fail to efficiently remove elemental mercury (Hg0) from flue gas and oxidized mercury (Hg2+) from waste liquid, with activated carbon injection technology being costly and its mercury removal efficiency is affected by NOx and SO2.
Innovation Solution
Utilization of metal sulfides (e.g., FeS2, CuS, CuFeS2) as mercury removal adsorbents, which contact with flue gas and waste liquid, adsorbing and converting Hg0 from flue gas and Hg2+ from waste liquid into stable mercury sulfide compounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If activated carbon injection technology is used for mercury removal, then mercury removal efficiency is improved, but operational costs increase and removal efficiency is affected by NOx and SO2
Solution Approach 1:
The patent changes the chemical composition parameter of the adsorbent from activated carbon to metal sulfides (such as FeS2, CuS, CuFeS2), which fundamentally alters the removal mechanism and eliminates sensitivity to NOx and SO2 while reducing operational costs
Solution Approach 2:
The patent converts the harmful interaction between activated carbon and NOx/SO2 (which reduces efficiency) into a beneficial system where metal sulfides are immune to these interferents, and even utilize the flue gas composition to maintain stable performance
2Reliability
If activated carbon injection technology is used for mercury removal, then mercury removal efficiency is improved, but operational costs increase
Solution Approach 1:
The patent replaces expensive activated carbon with cheaper metal sulfide-based adsorbents that can be disposed of after use, significantly reducing operational costs while maintaining effective mercury removal capability
Solution Approach 2:
The patent changes the material composition parameter to metal sulfides, which are inherently less expensive than activated carbon, thereby reducing the cost parameter without sacrificing removal efficiency
3Quantity of substance
If a plurality of unit modules are electrically connected through connecting wires in series and parallel, then battery pack capacity and voltage requirements are met, but component cost and management complexity increase
Solution Approach 1:
The patent segments the battery pack into multiple standardized unit modules that can be independently manufactured and assembled, allowing flexible configuration to meet different capacity and voltage requirements while simplifying management through modular standardization
Solution Approach 2:
The patent creates universal unit modules that can serve multiple functions and be configured in various series/parallel arrangements to meet different electrical requirements, reducing the need for custom designs and simplifying inventory and management
4Quantity of substance
If a plurality of unit modules are electrically connected through connecting wires in series and parallel, then battery pack capacity and voltage requirements are met, but component cost increases
Solution Approach 1:
The patent divides the battery system into standardized unit modules that can be assembled in series/parallel configurations, allowing optimal use of connecting wires and reducing total wire length and cost compared to non-modular designs
Solution Approach 2:
The patent combines multiple unit modules into a unified battery pack structure with shared management systems and common electrical connections, reducing redundant components and overall cost while achieving the required capacity
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
Achieves efficient, cost-effective, and environmentally friendly simultaneous removal of Hg0 from flue gas and Hg2+ from waste liquid, avoiding secondary pollution and reducing operational costs.
Implementation Method 1
metal sulfides (e.g., FeS2, CuS, CuFeS2) as mercury removal adsorbents, which contact with flue gas and waste liquid, adsorbing and converting Hg0 from flue gas
Implementation Method 2
adsorbing and converting Hg0 from flue gas and Hg2+ from waste liquid into stable mercury sulfide compounds
Data Source
AI summary
Disclosed is a sub pack, which includes a battery module assembly having a plurality of unit modules; and a BMS assembly coupled to one longitudinal side of the battery module assembly, the battery module assembly includes a first sub module having a plurality of unit modules connected along a longitudinal direction of the first sub module; and a second sub module having a plurality of unit modules and connected to the first sub module along a width direction of the unit module, and the BMS assembly includes a first BMS for controlling charging and discharging of the first sub module; a second BMS for controlling charging and discharging of the second sub module; and a BMS frame fastened to one longitudinal side of the battery module assembly and surrounding peripheries of the first BMS and the second BMS.