Source code for RCAIDE.Library.Components.Powertrain.Sources.Battery_Modules.Aluminum_Air
# RCAIDE/Library/Components/Powertrain/Energy/Sources/Battery_Modules/Aluminum_Air.py
#
#
# Created: Mar 2024, M. Clarke
# ----------------------------------------------------------------------------------------------------------------------
# IMPORT
# ----------------------------------------------------------------------------------------------------------------------
# RCAIDE imports
from RCAIDE.Framework.Core import Units
from .Generic_Battery_Module import Generic_Battery_Module
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# Aluminum_Air
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[docs]
class Aluminum_Air(Generic_Battery_Module):
"""
Class for modeling aluminum-air battery characteristics and performance
Attributes
----------
tag : str
Identifier for the battery module (default: 'Aluminum Air')
cell.specific_energy : float
Energy capacity per unit mass [J/kg] (default: 1300 Wh/kg)
cell.specific_power : float
Maximum power output per unit mass [W/kg] (default: 0.2 kW/kg)
mass_gain_factor : float
Rate of mass increase during discharge [kg/Wh] (default: 0.000110145 kg/Wh)
cell.water_mass_gain_factor : float
Rate of water consumption [kg/Wh] (default: 0.000123913 kg/Wh)
cell.aluminum_mass_factor : float
Rate of aluminum consumption [kg/Wh] (default: 0.000123828 kg/Wh)
cell.ragone.const_1 : float
First constant in Ragone curve fit [kW/kg] (default: 0.8439 kW/kg)
cell.ragone.const_2 : float
Second constant in Ragone curve fit [1/(Wh/kg)] (default: -4.8647e-4)
cell.ragone.lower_bound : float
Minimum specific energy on Ragone plot [Wh/kg] (default: 1100 Wh/kg)
cell.ragone.upper_bound : float
Maximum specific energy on Ragone plot [Wh/kg] (default: 1600 Wh/kg)
Notes
-----
Aluminum-air batteries are a type of metal-air battery that uses aluminum
as the anode and ambient oxygen as the cathode. During discharge, the battery
consumes aluminum and water while gaining mass from the reaction products.
**Definitions**
'Ragone Plot'
Graph showing the relationship between specific power and specific energy,
characterized by constants that define the performance envelope
'Mass Gain Factor'
Rate at which the battery gains mass during discharge due to the
conversion of aluminum to aluminum hydroxide
See Also
--------
RCAIDE.Library.Components.Powertrain.Sources.Battery_Modules.Generic_Battery_Module
Base battery module class
"""
def __defaults__(self):
"""
Sets default values for aluminum-air battery attributes
"""
self.tag = 'Aluminum Air'
self.cell.specific_energy = 1300.*Units.Wh/Units.kg # convert to Joules/kg
self.cell.specific_power = 0.2*Units.kW/Units.kg # convert to W/kg
self.mass_gain_factor = 0.000110145*Units.kg/Units.Wh
self.cell.water_mass_gain_factor = 0.000123913*Units.kg/Units.Wh
self.cell.aluminum_mass_factor = 0.000123828*Units.kg/Units.Wh # aluminum consumed per energy
self.cell.ragone.const_1 = 0.8439*Units.kW/Units.kg
self.cell.ragone.const_2 = -4.8647e-004/(Units.Wh/Units.kg)
self.cell.ragone.lower_bound = 1100.*Units.Wh/Units.kg
self.cell.ragone.upper_bound = 1600.*Units.Wh/Units.kg
