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Basic Knowledge of Battery Introduction - Coggle Diagram
Basic Knowledge of
Battery Introduction
Batrey OverView
History
1859 - lead-acid battery
1909 - nickwl-iron battery
1969 - silver-zinc battery
1975 - sealed lead-acid > VRLA battery prototype
1992 - general adoption of VRLA Valve Regulated Sealed Lead-acidbattery
present - AGM Absorbed Glass Mat Battery in Data Centers
Battery characteristics for Data Center
Small footprint
High Power Density and excellent discharge performance
Simple battery installation and maintenance
Small Diffrence in capacity and voltage among battery
Classification and Naming Rule of Battery
battery Classification in ICT
Lead-acid battery
Flooded lead-acid battery > 2V
Starved-electrolyte battery
GEL Gelled
AGM Absorbed Glass Mat
Common 12 V
12 V front access
2v
Naming Rule p1-p2-p3
p2.type of feature of storage battery
p3.rated capacity of the storage battery
p1.number of storage battery in series
Example >> 6-GFM-100
Structure and Working Principle of Battery
Main Components
Safety Valve
Positive / Negative Plate
Battery Chute
Battery Separator
Busbar
Working Principle
Charging
at tthe beginning > the terminal voltage of the storage battery increases dramatically along a curve
then the terminal voltage increase slows down
after battery is 90% charged > as side effect > separated hydrogen ions begin being produced more rapidly at the anode
terminal voltage gets to max voltage
and both terminals are separating out hydrogen
Discharging
terminal voltage of the storage battery decreases significally
the discharge voltage drops slowly
as dischargin active substances on the positivve and negative terminals gradually become PbSO
the generation of PbSO reducces the holse in the active substances
which increase the internal battery resistance causing the terminal voltage to drop dramatically to the end of discharge voltage
Application Scenarios
IDC Application Scenarios
Storage Battery are mainly installed in the battery racks and battery cabinets
Battery cabinets are deployed next to other cabinets and are applied in modular data centers and container data centers
Battery racks are mainly deployed in an independent battery room or battery area and applied in large data centers.
Requirments
IEC61056-2012
Ambient temperature and humidity
Avoid Direct sunlight
Maintain space
Insulation
Shockproof