Battery Design for Maintainability, Ruggedness and Safety · Battery design for maintainability,...
Transcript of Battery Design for Maintainability, Ruggedness and Safety · Battery design for maintainability,...
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#LCV2019 @LCV_Event
Battery Design for Maintainability,
Ruggedness and SafetyAndrew Cowie
SLICE Product Manager, Large Lithium-Ion Battery Design – Denchi Power
Session Sponsor:
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Andrew Cowie, Product Manager – Denchi GroupBattery Safety and Legislation
Cenex-LCV, 4 September 2019
Battery design for maintainability, ruggedness and safety
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Agenda
• Company Overview
• Denchi Group Product Lines
• Case Study 1: Armoured Vehicles
• Case Study 2: Large Scale Battery
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Denchi Group - History
1996 -2004
2004 -2011
2011 –2014
2014 onwards
2018
AEA Technology – UK listed Plc
ABSL Power Solutions Ltd - Private Equity
owned
ABSL Power Solutions Ltd - Owned by
EnerSys, US corporate
Denchi Power Ltd –Privately owned
20+ years experience in designing and manufacturing high reliability batteries, especially Lithium-ion technologies
Rebrand to trade as Denchi Group
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Denchi Group - Facility
Purpose Built Facility
• Employing 50 People
Located in Thurso, Scotland
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Denchi Group – Capability and Expertise
• Bespoke Battery Design• Battery Management - Simple V & I control through to deep host integration• Power Transfer – Power electronics, busbar design• Enclosures – Low cost through to IP67 (and beyond)
• Battery Testing• Mechanical – Vibration, shock, thermal, altitude• Electrical – Automated cyclers up to 1500A @ 100v, or 400A @ 1kV• Abuse – Fully protected abuse chamber• Long-term – Climate-controlled test area
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Denchi Group Brands and Product Families
Denchi Power
• Military Products• Vehicles
• Dismounted Soldiers
• UAV & UUAV
• Specialist & Bespoke• Oil & Gas
• Industrial
SLICE
• Industrial• Modular & Scalable
• 50kWh to >MWh
• EV/Solar/Wind/Grid integration
• Containerised or free standing
• Rail, Grid, Marine derivations
Oldham
• Mining• Battery Packs
• Lamps
• Charging accessories
• Marine• Safety lamps
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Denchi Power 6T - Battery Overview• Voltage: 21V – 27.8V
• Capacity: 85Ah (2.1kWh)
• Discharge Current:
Continuous – 350A
Peak – 900A
• Operating Temperature: -40°C to +60°C
• Integrated Charger
• J1939 Compliant CANBus
• IP 68
• Fuel Gauging – SOC & SOH
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Denchi Power 6T - Design Overview
Mechanical/assembly • Robust aluminium case • Safety vent • Shock and vibration resistant
Electronics• Modular approach• In-built redundancy – each
module operates independently
• Multi-levels of protectionKey 1 – Cell Modules2 - Internal walls3 – Cell separation4 – In-Built charger
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Denchi Power 6T
• 6x PbA replaced by 3x Li-Ion gives:• More operational energy• Less weight (25kg instead of 40kg)• More than 15x working life• Installation time reduced to 7m36s from 28m
• State of Charge integration into system gives users clear view of mission capability
• State of Health information integration into main logistics chain reduces supply overheads and improves vehicle maintenance turn around at fleet level
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SLICE Industrial
• Scalable modular battery
• Core design usage case – Industrial site with significant base load• Peak shifting
• Co-location with renewables
• Participation in grid balancing services
• Expectation that further use cases will emerge as product matures
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SLICE Industrial – Battery Overview - Modules
• Voltage: 48V – 56V• Capacity: 69Ah (3.5kWh)• Discharge/Charge : 100A/5.1kW• Operating Temperature: 0°C to +45°C
• 19” Rack Mounted• Localised sensing & measurement• Local safety devices• Designed to be stacked up to 1000v system
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SLICE Industrial – Battery Overview - System
• Voltage: 624V – 728V
• Capacity: 69Ah (45.9kWh)
• Discharge/Charge Current:
• Continuous – 100A/66.6kW
• Operating Temperature: 0°C to +45°C
• Charge & Discharge Control
• Cell Balancing
• Fuel Gauging
• Pre-processing of usage data
• Parallel usage up to ~1.2MWh (26 Cabinets)
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SLICE Industrial – Design Overview
Mechanical/assembly • LFP Cells with air gap between
• Multiple partitions between modules
• Shock and vibration resistant
Electronics• Cabinet-level active safety
• Module-level passive protection
• Global auxiliary-power control
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SLICE Industrial – Data Capture Scheme
• Maximise data capture opportunities• Cloud processing across multiple systems, gives new insights
Bat
tery
Co
mm
s La
yer
Cabinet 1
Cabinet 2
Cabinet 3
Cabinet 20
Battery Array Controller- Cabinet Sequence control
- Data Aggregation- Data Consolidation
IoT Web Server- Security
- Remote Control (Grid Services)
- Local Storage/Back-up
Syst
em D
ata
Agg
rega
tio
n L
aye
r
AC/DC Power Conversion Control
Ancillary Measurements- Grid Import Power
- Renewables- EV Chargers
- Weather measurement
- Building Management Data
Cloud Storage- Trend Analysis
- Prognosis Forecast
- Proactive Maintenance
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SLICE Industrial – Data Usage
• Use local energy data trends to create optimized ‘hybrid’ building
• Integrate with grid balancing schemes to generate revenue for asset owner
• Use cloud computing power to develop prognosis and improve usage to extend life
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Large scale modular batteries
• Fast charging where grid prohibits
• Marine propulsion – Electric or hybrid
• Large vehicle propulsion – EV or hybrid
• Coupled with Hydrogen fuel cell technology
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SLICE Industrial – HydroFLEX – UK’s first Hydrogen Powered Train
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HydroFLEX Installation
Vehicle Installation Battery Spec
• Voltage: 576V – 672V
• Capacity: 138Ah (84.8kWh)
• Current/Power: 200A/122.8kW
Pictures with permission of BCCRE
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Contact us
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Careers
01847 808 000
www.denchigroup.com