AU2020102830A4 - Hybrid Lithium Battery Pack-Reversible Solid Oxide Cell Power System and Application thereof - Google Patents
Hybrid Lithium Battery Pack-Reversible Solid Oxide Cell Power System and Application thereof Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/46—Accumulators structurally combined with charging apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/1231—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte with both reactants being gaseous or vaporised
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H2021/003—Use of propulsion power plant or units on vessels the power plant using fuel cells for energy supply or accumulation, e.g. for buffering photovoltaic energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
- B63H2021/171—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor making use of photovoltaic energy conversion, e.g. using solar panels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/40—Combination of fuel cells with other energy production systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Fuel Cell (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention discloses a hybrid lithium battery pack-reversible solid oxide cell power
system and application thereof, relating to the field of battery devices, wherein the power
system comprises: an RSOC comprising two operation modes: SOFC mode and SOEC mode; a
hydrogen storage tank, an oxygen storage tank, and a water storage tank that provide reaction
materials; a solar energy collection plate used to provide thermal energy required for the SOEC
mode; a lithium battery pack used to provide electric energy required for the SOEC mode; a
charging module used to charge the lithium battery pack in the SOFC mode; a power
distribution module used to receive electric energy of the lithium battery pack and/or the RSOC;
a power supply module used to supply power to a load; and a control module used to control
system operation. The application thereof comprises a device of the power system in ship
driving and a use method thereof. The present invention not only reduces the structural
complexity of a heat source supply device, but also has the characteristics of long duration, fast
start-up, and stable output power.
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The present application relates to the technical field of battery, in particular to a hybrid lithium
battery pack-reversible solid oxide cell power system and application thereof.
The invention has been developed primarily for use as a hybrid lithium battery system and will
be described hereinafter with reference to this application. However, it will be appreciated
that the invention is not limited to this particular field of use.
Any discussion of the prior art throughout the specification should in no way be considered as
an admission that such prior art is widely known or forms part of the common general
knowledge in the field.
Since the International Maritime Organization enforced the "sulfur limit order", the
development of new energy ships with low energy consumption and low emission becomes the
primary task of the current shipping business. The ship hybrid power control strategy is one of
the important directions in the conversion process of traditional ships into new energy ships.
The reversible solid oxide cell (RSOC for short), also referred to as reversible solid oxide fuel
cell-electrolysis cell, is a reversible electrochemical energy conversion device that can
implement the direct and efficient conversion between fuel chemical energy and electric energy,
and has prominent advantages of high energy conversion efficiency, environmental friendliness,
low SOx and NOx emission, and no noise pollution. The RSOC can operate in two operation modes, i.e., solid oxide fuel cell (SOFC) mode and solid oxide electrolysis cell (SOEC) mode.
In the SOFC mode, hydrogen is fed to the anode and oxygen is fed to the cathode, so as to
implement the efficient conversion of fuel chemical energy into electric energy (with power
generation efficiency of 50%-60%). In the SOEC mode, water is fed to the anode, and after
external electric energy is provided, the conversion of electric energy into hydrogen and
oxygen can be implemented.
For example, the Chinese patents for invention of the publication numbers CN105576273A and
CN109921060A specifically disclose a structure of a reversible solid oxide cell and a
subsystem structure required for energy conversion.
However, in the prior art, in the SOEC mode of the reversible solid oxide cell, water vapor
needs to be fed to the anode in the condition of high temperature, so an additional device is
required to provide the heat source, thereby not only increasing the complexity of the system
device of an energy system including the RSOC, but also imposing a relatively large device
restriction on the SOEC mode.
In addition, if the RSOC independently serves as a power source, such as ship power source,
there are problems such as long start-up time and unstable power output.
It is an object of the present invention to overcome or ameliorate at least one of the
disadvantages of the prior art, or to provide a useful alternative.
In view of the problems in the prior art that the structure of a device providing a heat source in
an RSOC system is complex and when an RSOC serves as a power source independently, the start-up time is long and power output is unstable, the objective of the present invention is to provide a hybrid lithium battery pack-reversible solid oxide cell power system and application thereof.
In order to achieve the above objective, the technical solution of the present invention is as
follows:
In a first aspect, the present invention provides a hybrid lithium battery pack-reversible solid
oxide cell power system, comprising an RSOC, a hydrogen storage tank, an oxygen storage
tank, and a water storage tank, wherein the RSOC comprises an SOFC mode and an SOEC
mode, and further comprising:
a solar energy collection plate, wherein the solar energy collection plate is connected to the
RSOC to provide thermal energy required for the SOEC mode;
a lithium battery pack, wherein the lithium battery pack is electrically connected to the
RSOC, the lithium battery pack is used to provide electric energy for the RSOC in the SOEC
mode and is further used to receive, via a charging module, electric energy released by the
RSOC in the SOFC mode;
the charging module, wherein the charging module is connected between the lithium battery
pack and the RSOC;
a power distribution module and a power supply module, wherein an input end of the power
distribution module is electrically connected to the lithium battery pack and the RSOC to
receive electric energy provided by the lithium battery pack and/or the RSOC, and an output
end of the power distribution module is electrically connected to the power supply module to
provide an applicable power source for a load; and a control module, wherein the control module is electrically connected to the lithium battery pack and the RSOC, and the control module is used to control switching between the SOFC mode and the SOEC mode, used to control the RSOC to charge the lithium battery pack in the SOFC mode, used to control the lithium battery pack to provide electric energy for the
RSOC in the SOEC mode, and used to control the lithium battery pack and/or the RSOC to
output electric energy to the power distribution module.
The hybrid lithium battery pack-reversible solid oxide cell power system further comprises a
first phase change heat reservoir, wherein the first phase change heat reservoir is connected to
the solar energy collection plate and the RSOC, and the first phase change heat reservoir is
used to collect thermal energy from the solar energy collection plate and provide thermal
energy for the RSOC in the SOEC mode.
In an example, the power supply module is a DC-DC module and/or a DC-AC module.
In an example, the power distribution module comprises a boost module used for connecting to
the RSOC and a buck module used for connecting to the lithium battery pack.
In another aspect, the present invention provides a hybrid lithium battery pack-reversible solid
oxide cell ship power system, comprising:
the hybrid lithium battery pack-reversible solid oxide cell power system as described above;
and
a ship driving device, wherein the ship driving device comprises a motor, a clutch, a
transmission, and a propeller connected in sequence; and
wherein the motor is electrically connected to the power supply module.
In still another aspect, the present invention provides an application method of the hybrid
lithium battery pack-reversible solid oxide cell power system in ship power, comprising:
a start-up phase, a cruise phase, and a docking phase, wherein
the start-up phase comprises the following step: in response to a start-up signal, connecting
the lithium battery pack to the power distribution module, wherein the lithium battery pack
drives the ship driving device until a ship departs from a port;
the cruise phase comprises the following steps:
in response to a cruise signal, connecting the lithium battery pack to the power distribution
module, wherein the lithium battery pack drives the ship driving device;
receiving a voltage signal and a current signal of the lithium battery pack, and calculating
power of the lithium battery pack;
determining whether the power of the lithium battery pack is greater than power of the ship
driving device;
if the power of the lithium battery pack is greater than the power of the ship driving device,
switching the RSOC to the SOEC mode, wherein the lithium battery pack provides the
electric energy required for an SOEC reaction;
if the power of the lithium battery pack is not greater than the power of the ship driving
device, switching the RSOC to the SOFC mode, and connecting the RSOC to the power
distribution module, wherein the lithium battery pack and the RSOC jointly drive the ship
driving device;
receiving a current signal and a voltage signal of the RSOC in the SOFC mode, and
calculating power of the RSOC; determining whether the power of the RSOC is greater than the power of the ship driving device; if the power of the RSOC is greater than the power of the ship driving device, disconnecting the lithium battery pack from the power distribution module, wherein the RSOC independently drives the ship driving device and the RSOC charges the lithium battery pack; and if the power of the RSOC is not greater than the power of the ship driving device, maintaining the SOFC mode of the RSOC, maintaining jointly driving the ship driving device by the lithium battery pack and the RSOC, continuing receiving of the current signal and the voltage signal of the RSOC in the SOFC mode, calculating the power of the RSOC, determining whether the power of the RSOC is greater than the power of the ship driving device, and if the power of the RSOC is greater than the power of the ship driving device, performing the last step; and the docking phase comprises the following step: in response to a docking signal, disconnecting the lithium battery pack and the RSOC from the power distribution module, and stopping operation of the RSOC, wherein the lithium battery pack is charged via a shore power supply if a battery level thereof is lower than a preset battery level.
In an example, at any time during the cruise phase, the step of the docking phase is performed
if the docking signal is received.
In the technical solution described above, first, the high temperature environment required for
the SOEC mode is supplemented with solar energy due to the provision of the solar energy
collection plate, thereby effectively reducing the power generation cost; secondly, due to the provision of the lithium battery pack, the charging module, the power distribution module, the power supply module, and the control module, the lithium battery pack can be used to provide stable and efficient output power required, and the SOFC mode can be used to provide long-duration and large-capacity output power required; in addition, the lithium battery pack and the RSOC can provide electric power for each other such that both parties can operate in the SOEC mode and be charged, thereby ensuring that the load can obtain appropriate power supply in various environments, the electric power is clean, and the conversion efficiency is high.
Preferred embodiments of the invention will now be described, by way of example only, with
reference to the accompanying drawings in which:
FIG. 1 is a structural block diagram of a hybrid lithium battery pack-reversible solid oxide
cell power system of the present invention;
FIG. 2 is a schematic diagram of electric connection of the hybrid lithium battery
pack-reversible solid oxide cell power system of the present invention;
FIG. 3 is a schematic diagram of a control switch of the hybrid lithium battery
pack-reversible solid oxide cell power system of the present invention;
FIG. 4 is a schematic diagram of application of the hybrid lithium battery pack-reversible
solid oxide cell power system of the present invention in ship driving; and
FIG. 5 is a ship operation flowchart of the hybrid lithium battery pack-reversible solid oxide
cell power system of the present invention.
In the drawings: 1-RSOC, 2-hydrogen storage tank, 21-hydrogen compressor, 3-oxygen storage
tank, 31-oxygen compressor, 4-water storage tank, 5-solar energy collection plate, 6-lithium
battery pack, 7-charging module, 8-power distribution module, 81-power distribution board,
82-boost module, 83-buck module, 10-control module, 11-second phase change heat reservoir,
12-hydrogen heat exchanger, 13-oxygen heat exchanger, 14-mixer, 15-reformer, 16-evaporator,
17-first phase change heat reservoir, 18-motor, 19-gearbox, and 20-propeller.
The specific embodiments of the present invention re further described below with reference to
the drawings. It should be noted herein that the description of these embodiments is used to
facilitate understanding the present invention, but is not construed as a limitation to the present
invention. In addition, the technical features involved in the various embodiments of the
present invention described below can be combined with each other in the case of no conflict
with each other.
In a first aspect, an embodiment of the present invention provides a hybrid lithium battery
pack-reversible solid oxide cell power system, as shown in FIGS. 1-3, including:
a reversible solid oxide fuel cell-electrolysis cell (RSOC)1 including a reversible solid oxide
fuel cell (SOFC) operation mode and a reversible solid electrolysis cell (SOEC) operation
mode, wherein the RSOC 1 includes an anode input end, a cathode input end, an anode
output end, and a cathode output end; after hydrogen is fed to the anode input end and
oxygen is fed to the cathode input end, the SOFC mode can be enabled, electric energy can
be released, and additionally, the anode output end produces water; and after external electric
energy and thermal energy are received and water is fed to the anode input end, the SOEC mode can be enabled, the anode output end outputs hydrogen, and the cathode output end outputs oxygen; a hydrogen storage tank 2, wherein the hydrogen storage tank 2 is used to store hydrogen, an output end of the hydrogen storage tank 2 is connected to the anode input end via a hydrogen compressor 21 to provide hydrogen required for the SOFC mode, and additionally, an input end of the hydrogen storage tank 2 is connected to the anode output end to receive the hydrogen generated in the SOEC mode; an oxygen storage tank 3, wherein the oxygen storage tank 3 is used to store oxygen, an output end of the oxygen storage tank 3 is connected to the cathode input end via an oxygen compressor 31 to provide oxygen required for the SOFC mode, and additionally, an input end of the oxygen storage tank 3 is connected to the cathode output end to receive the oxygen generated in the SOEC mode; a water storage tank 4, wherein the water storage tank 4 is used to store water, an output end of the water storage tank 4 is connected to the anode input end to provide water required for the SOEC mode, and additionally, an input end of the water storage tank 4 is connected to the anode output end to receive water produced in the SOFC mode; a solar energy collection plate 5, wherein the solar energy collection plate 5 is connected to the RSOC 1 to provide thermal energy required for the SOEC mode; a lithium battery pack 6, wherein the lithium battery pack 6 is electrically connected to the
RSOC 1, the lithium battery pack 6 is used to provide electric energy for the RSOC 1 in the
SOEC mode and is further used to receive, via a charging module 7, electric energy released
by the RSOC 1 in the SOFC mode; the charging module 7, wherein the charging module 7 is connected between the lithium battery pack 6 and the RSOC 1, and the charging module 7 is used to charge the lithium battery pack 6 with the electric energy released by the RSOC 1 in the SOFC mode; a power distribution module 8 and a power supply module 9, wherein an input end of the power distribution module 8 is electrically connected to the lithium battery pack 6 and the
RSOC I to receive electric energy provided by the lithium battery pack 6 and/or the RSOC 1,
and an output end of the power distribution module 8 is electrically connected to the power
supply module 9 to provide an applicable power source for a load; and
a control module 10, wherein the control module 10 is electrically connected to the lithium
battery pack 6 and the RSOC 1, and the control module 10 is used to control switching
between the SOFC mode and the SOEC mode, used to control the RSOC 1 to charge the
lithium battery pack 6 in the SOFC mode, used to control the lithium battery pack 6 to
provide electric energy for the RSOC 1 in the SOEC mode, and used to control the lithium
battery pack 6 and/or the RSOC 1 to output electric energy to the power distribution
module 8.
It is understandable that, in order to enable the above-mentioned SOFC mode and SOEC mode
successfully, a second phase change heat reservoir 11, a hydrogen heat exchanger 12, and an
oxygen heat exchanger 13 are further provided in the system. An input end of the second phase
change heat reservoir 11 is connected to the RSOC 1, an output end thereof is connected to
both the hydrogen heat exchanger 12 and the oxygen heat exchanger 13, and the second phase
change heat reservoir 11 is used to collect thermal energy released by the RSOC 1 in the SOFC
mode and supply the thermal energy to the hydrogen heat exchanger 12 and oxygen heat exchanger 13; the hydrogen heat exchanger 12 is connected between the hydrogen compressor21 and the anode input end, and the oxygen heat exchanger 13 is connected between the oxygen compressor 31 and the cathode input end, such that hydrogen and oxygen are preheated by means of waste heat released by the RSOC 1 in the SOFC mode, and a fuel cell reaction can be performed more efficiently.
In an example, in order to enable the above-mentioned SOFC mode and SOEC mode
successfully, a mixer 14, a reformer 15, and an evaporator 16 are further provided. The
mixer 14 and the reformer 15 are sequentially connected between the hydrogen compressor 21
and the hydrogen heat exchanger 11 according to an airflow direction; the output end of the
water storage tank 4 is connected to an input end of the evaporator 16, and an output end of the
evaporator 16 is connected to an input end of the mixer 14.
As a heat collection effect of the solar energy collection plate 5 is significantly affected by
sunlight, it is difficult to implement all-weather provision of the thermal energy required for the
SOEC mode, in this case, a first phase change heat reservoir 17 is introduced. An input end of
the first phase change heat reservoir 17 is connected to the solar energy collection plate 5, and
an output end thereof is connected to the RSOC 1, such that the first phase change heat
reservoir 17 can fully store thermal energy collected by the solar energy collection plate 5 and
provide the heat energy required for a reaction for the RSOC1 in the SOEC mode.
In this embodiment, the power supply module 9 is a DC-DC module and/or a DC-AC module,
one or both of which are reasonably selected according to properties of the load. The power
distribution module 8 specifically includes a power distribution board 81 and a boost
module 82 and a buck module 83 mounted on the power distribution board 81, wherein the boost module 82 is connected to the RSOC 1 to increase an output voltage of the RSOC 1, and the buck module 83 is connected to the lithium battery pack 6 and is used to reduce an output voltage of the lithium battery pack 6.
The reversible solid oxide cell in this embodiment can provide two operation modes:
1 The RSOC 1 in the SOFC mode consumes fuel to generate electric energy: referring to
the schematic diagram of electrical control shown in FIG. 3, if a switch SB2 is switched
on, a relay KM2 is energized, and the system enters the SOFC mode. In this case, the
hydrogen in the hydrogen storage tank 2 passes through the hydrogen compressor 21
and is mixed, in the mixer 13, with water vapor evaporated by the evaporator 16 in the
water storage tank 4, then a mixture is fed into the reformer 15 for a catalytic reaction,
and finally, a reactant passes through the hydrogen heat exchanger 12 and enters the
anode input end of the RSOC 1; the oxygen in the oxygen storage tank 3 is compressed
by the oxygen compressor 31, and then enters the cathode input end of the RSOC 1 after
passing through the oxygen heat exchanger 13, a cathode gas and an anode gas undergo
a chemical reaction in the RSOC 1, and water produced by the reaction is fed into the
water storage tank 4 for recycling and storage; electric energy generated by the RSOC 1
is inputted into the power distribution module 8 to supply power to a device or to charge
the lithium battery pack 6; thermal energy generated by an electrochemical reaction
occurring in the RSOC 1 has a relatively high use value, the waste heat is recovered via
the second phase change heat reservoir 11, and the high-temperature waste heat is fed
into the hydrogen heat exchanger 12 and the oxygen heat exchanger 13 via a pipeline to
preheat a reaction gas.
2. The RSOC 1 in the SOEC mode consumes water and electric energy to generate fuel: if
a switch SB3 is switched on, a relay KMI is energized, and the system is switched to
the SOEC mode. In this case, the water in the water storage tank 4 is evaporated by the
evaporator 16 and then fed to the anode input end of the RSOC 1, and additionally, solar
energy collected by the solar energy collection plate 5 provides the thermal energy for
the SOEC mode, the excess solar energy is stored in the first phase change heat
reservoir 17, and the lithium battery pack 6 provides the electric power required for the
SOEC mode. Oxygen and hydrogen generated by an electrolytic water reaction are
separated from each other by means of a dense electrolyte, then outputted from the
cathode output end and the anode output end of the RSOC 1, respectively, and stored in
the oxygen storage tank 3 and the hydrogen storage tank 2.
In this embodiment, the hybrid lithium battery pack-reversible solid oxide cell power system
has at least 6 operation modes:
1. The lithium battery pack 6 independently drives the load to operate, and the RSOC 1
neither participates in driving the load to operate, nor does it operate in the SOEC mode
or the SOFC mode.
2. The lithium battery pack 6 drives the load to operate, and the lithium battery pack 6
provides electric energy, such that the RSOC 1 operates in the SOEC mode to generate
hydrogen and oxygen.
3. The lithium battery pack 6 drives the load to operate, and the RSOC 1 operates in the
SOFC mode and consumes hydrogen and oxygen to generate electric energy, such that the RSOC 1 also drives the load to operate.
4. The lithium battery pack 6 does not participate in driving the load to operate, and the
RSOC 1 operates in the SOFC mode and generates electric energy to drive the load to
operate.
5. The lithium battery pack 6 does not participate in driving the load to operate, and the
RSOC 1 operates in the SOFC mode and generates electric energy to charge the lithium
battery pack 6 and to drive the load to operate.
In a second aspect, an embodiment of the present invention provides a hybrid lithium battery
pack-reversible solid oxide cell ship power system, as shown in FIG. 4, including:
the hybrid lithium battery pack-reversible solid oxide cell power system provided in the
embodiment of the first aspect; and
a ship driving device, wherein the ship driving device includes a motor 18, a clutch, a
transmission 19, and a propeller 20 connected in sequence.
The motor 18 is electrically connected to the power supply module 9.
In a third aspect, an embodiment of the present invention provides an application method of a
hybrid lithium battery pack-reversible solid oxide cell ship power system in ship power, i.e., an
application method of the embodiment of the second aspect, wherein both the lithium battery
pack 6 and the RSOC 1 are provided with a voltage and current sampling point (a device and
an instrument that can collect a voltage signal and a current signal are disposed at the voltage
and current sampling point, such as current and voltage signal samplers), and the power supply
module 9 is connected to a load (the load is an electrical device, such as a motor). The application method specifically includes a start-up phase, a cruise phase, and a docking phase, as shown in FIG. 5.
The start-up phase includes the following step: in response to a start-up signal, the control
module 10 connects the lithium battery pack 6 to the power distribution module 8, wherein the
lithium battery pack 6 drives the ship driving device until a ship departs from a port.
The control module 10 is responsible for implementation of the method in this embodiment.
The start-up signal can be sent to the control module 10 by means of wire communication by a
ship operator via an operation button, or can be sent to the control module 10 by means of
wireless communication by a ship operator via a mobile terminal or a remote terminal. The
specific step of connecting the lithium battery pack 6 to the power distribution module 8
includes controlling switch-on and off of a corresponding switch and relay in the circuit system,
such that the lithium battery pack 6 and the power distribution module 8 form a closed loop. In
addition, the output voltage of the lithium battery pack 6 usually needs to be reduced by means
of the buck module 83, and then connected to the load for use.
In the cruise phase:
Step S300. In response to a cruise signal, the control module 10 performs the method of the
embodiment of the second aspect, wherein the cruise signal is an operation signal in the
embodiment of the second aspect, and the ship driving device is the load in the embodiment of
the second aspect.
Similar to the start-up signal, the cruise signal can also be transmitted to the control module 10
in two feasible ways. The specific steps of the cruise phase are as follows:
Step S301. In response to the cruise signal, the lithium battery pack 6 is connected to the power
distribution module 8, wherein the lithium battery pack 6 drives the ship driving device.
Step S302. A voltage signal and a current signal of the lithium battery pack 6 are received, and
power of the lithium battery pack 6 is calculated.
The control module 10 is connected in advance to the sampling device and instrument that are
disposed at the voltage and current sampling point on the lithium battery pack 6, to receive
real-time current and voltage signals and calculate the real-time power of the lithium battery
pack 6.
Step S303. A determination as to whether the power of the lithium battery pack 6 is greater
than power of the ship driving device is performed.
The power of the ship driving device is a fixed value, for example, the rated power of the
motor 18, and is prestored in the control module 10, and the control module 10 compares the
power of the ship driving device with the calculated power of the lithium battery pack 6.
Step S304. If the power of the lithium battery pack 6 is greater than the power of the load, the
RSOC 1 is switched to the SOEC mode, wherein the lithium battery pack 6 provides the
electric energy required for an SOEC reaction.
It is understandable that, because the lithium battery pack 6 has extra electric energy, in order
not to waste the power of the lithium battery pack 6, the lithium battery pack 6 is used to
provide the electric energy required for the SOEC mode for the RSOC 1, thereby converting
the extra power of the lithium battery pack 6 into chemical energy of hydrogen and oxygen for
storage.
Step S305. If the power of the lithium battery pack 6 is not greater than the power of the ship
driving device, the RSOC 1 is switched to the SOFC mode, and the RSOC 1 is connected to
the power distribution module 8, wherein the lithium battery pack 6 and the RSOC 1 jointly
drive the ship.
In this case, because the power of the lithium battery pack 6 does not reach the power required
for normal operation of the ship driving device, the RSOC 1 is switched to the SOFC mode, the
chemical energy is converted into electric energy by consuming hydrogen and oxygen, and the
voltage is adjusted to a voltage suitable for use by the motor 18 by means of the boost module
82, such that the RSOC 1 and the lithium battery pack 6 operate jointly to provide the power
required for the normal operation of the ship driving device.
Step S306. A current signal and a voltage signal of the RSOC 1 in the SOFC mode are received,
and power of the RSOC 1 is calculated.
Given the case of relatively high output power of the RSOC 1 in step S305, it is necessary to
collect the output voltage and current signals and calculate the value of the output power.
Step S307. A determination as to whether the power of the RSOC 1 is greater than the power of
the ship driving device is performed.
Step S308. If the power of the RSOC 1 is greater than the power of the ship driving device, the
lithium battery pack 6 is disconnected from the power distribution module 8, wherein the
RSOC 1 independently drives the ship and the RSOC 1 charges the lithium battery pack 6.
Due to the excess output power of the RSOC 1, there is no need for the lithium battery pack 6
to continue to participate in providing electric energy for the ship driving device, thereby increasing the service life of the lithium battery pack 6. In addition, a supplement to consumed electric energy of the lithium battery pack 6 can be obtained from the RSOC 1 via the charging module 7.
Step S309. If the power of the RSOC 1 is not greater than the power of the ship driving device,
the SOFC mode of the RSOC1 is maintained, jointly driving the ship by the lithium battery
pack 6 and the RSOC 1 is maintained, receiving of the current signal and the voltage signal of
the RSOC 1 in the SOFC mode continues, the power of the RSOC 1 is calculated, a
determination as to whether the power of the RSOC 1 is greater than the power of the ship
driving device is performed, and if the power of the RSOC 1 is greater than the power of the
ship driving device, the last step is performed.
Step S309 can be construed as follows: if the power of the RSOC 1 is not greater than the
power of the ship driving device, step S305 is performed, and subsequent operations are
continued on the basis of step S305, so as to form a partial loop.
It is understandable that, since the operation life time of the lithium battery pack 6 is short and
the operation life time of the RSOC 1 is long, with the execution of step S309, under
continuous supply of hydrogen and oxygen, there is room for steady improvement of the output
power of the RSOC 1. Therefore, the power of the RSOC 1 is measured in real time, and when
the power of the RSOC 1 is greater than the load power, step S308 is performed in time to
charge the lithium battery pack 6, such that the joint power system formed by the lithium
battery pack 6 and the RSOC 1 can operate continuously.
The docking phase includes the following step:
Step S310. In response to a docking signal, the control module 10 disconnects the lithium
battery pack 6 and the RSOC 1 from the power distribution module 8, and stops operation of
the RSOC 1, wherein the lithium battery pack 6 is charged via a shore power supply if a battery
level thereof is lower than a preset battery level.
Similar to the start-up signal and the cruise signal, the docking signal can also be transmitted to
the control module 10 in two feasible ways. The step performed in the docking phase is
essentially a step performed after the ship docks on the wharf shore. In this case, the ship
driving device is shut down and the ship power system no longer operates, so the lithium
battery pack 6 and the RSOC 1 are both disconnected from the power distribution module 8,
and any operation of the RSOC 1 is stopped; and whether the lithium battery pack 6 is to be
charged via the shore power supply is determined according to the preset battery level
prestored in the control module 10.
At any time during the cruise phase, the step of the docking phase is performed if the docking
signal is received.
The embodiments of the present invention are described in detail above with reference to the
drawings, but the present invention is not limited to the described embodiments. Various
changes, modifications, substitutions, and variations of these embodiments made by those
skilled in the art without departing from the principle and spirit of the present invention still
fall within the protection scope of the present invention.
Reference throughout this specification to "one embodiment" or "an embodiment" means that
a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment, but may. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner, as would be apparent to one of ordinary skill in the art from this disclosure, in one or more embodiments.
In the claims below and the description herein, any one of the terms comprising, comprised of
or which comprises is an open term that means including at least the elements/features that
follow, but not excluding others. Thus, the term comprising, when used in the claims, should
not be interpreted as being limitative to the means or elements or steps listed thereafter. For
example, the scope of the expression a device comprising A and B should not be limited to
devices consisting only of elements A and B. Any one of the terms including or which
includes or that includes as used herein is also an open term that also means including at least
the elements/features that follow the term, but not excluding others. Thus, including is
synonymous with and means comprising.
As used herein, unless otherwise specified the use of the ordinal adjectives "first", "second",
"third", etc., to describe a common object, merely indicate that different instances of like
objects are being referred to, and are not intended to imply that the objects so described must
be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
Claims (5)
1. A hybrid lithium battery pack-reversible solid oxide cell power system, comprising:
an RSOC, a hydrogen storage tank, an oxygen storage tank, and a water storage tank,
wherein the RSOC comprises an SOFC mode and an SOEC mode, and
further comprising:
a solar energy collection plate, wherein the solar energy collection plate is connected to
the RSOC to provide thermal energy required for the SOEC mode;
a lithium battery pack, wherein the lithium battery pack is electrically connected to the
RSOC, the lithium battery pack is used to provide electric energy for the RSOC in the
SOEC mode and is further used to receive, via a charging module, electric energy released
by the RSOC in the SOFC mode;
the charging module, wherein the charging module is connected between the lithium
battery pack and the RSOC;
a power distribution module and a power supply module, wherein an input end of the
power distribution module is electrically connected to the lithium battery pack and the
RSOC to receive electric energy provided by the lithium battery pack and/or the RSOC,
and an output end of the power distribution module is electrically connected to the power
supply module to provide an applicable power source for a load; and
a control module, wherein the control module is electrically connected to the lithium
battery pack and the RSOC, and the control module is used to control switching between
the SOFC mode and the SOEC mode, used to control the RSOC to charge the lithium battery pack in the SOFC mode, used to control the lithium battery pack to provide electric energy for the RSOC in the SOEC mode, and used to control the lithium battery pack and/or the RSOC to output electric energy to the power distribution module.
2. The hybrid lithium battery pack-reversible solid oxide cell power system according to
claim 1, further comprising a first phase change heat reservoir, wherein the first phase
change heat reservoir is connected to the solar energy collection plate and the RSOC, and
the first phase change heat reservoir is used to collect thermal energy from the solar
energy collection plate and provide thermal energy for the RSOC in the SOEC mode.
3. The hybrid lithium battery pack-reversible solid oxide cell power system according to
claim 1 or claim 2, wherein the power distribution module comprises a boost module used
for connecting to the RSOC and a buck module used for connecting to the lithium battery
pack.
4. A hybrid lithium battery pack-reversible solid oxide cell ship power system, comprising:
the hybrid lithium battery pack-reversible solid oxide cell power system according to any
one of the preceding claims; and
a ship driving device, wherein the ship driving device comprises a motor, a clutch, a
transmission, and a propeller connected in sequence; and
wherein the motor is electrically connected to the power supply module.
5. An application method of the hybrid lithium battery pack-reversible solid oxide cell ship
power system according to claim 4, comprising:
a start-up phase, a cruise phase, and a docking phase, wherein
the start-up phase comprises the following step: in response to a start-up signal,
connecting the lithium battery pack to the power distribution module, wherein the lithium
battery pack drives the ship driving device until a ship departs from a port;
the cruise phase comprises the following steps:
in response to a cruise signal, connecting the lithium battery pack to the power distribution
module, wherein the lithium battery pack drives the ship driving device;
receiving a voltage signal and a current signal of the lithium battery pack, and calculating
power of the lithium battery pack;
determining whether the power of the lithium battery pack is greater than power of the
ship driving device;
if the power of the lithium battery pack is greater than the power of the ship driving device,
switching the RSOC to the SOEC mode, wherein the lithium battery pack provides the
electric energy required for an SOEC reaction;
if the power of the lithium battery pack is not greater than the power of the ship driving
device, switching the RSOC to the SOFC mode, and connecting the RSOC to the power
distribution module, wherein the lithium battery pack and the RSOC jointly drive the ship
driving device; receiving a current signal and a voltage signal of the RSOC in the SOFC mode, and calculating power of the RSOC; determining whether the power of the RSOC is greater than the power of the ship driving device; if the power of the RSOC is greater than the power of the ship driving device, disconnecting the lithium battery pack from the power distribution module, wherein the
RSOC independently drives the ship driving device and the RSOC charges the lithium
battery pack; and
if the power of the RSOC is not greater than the power of the ship driving device,
maintaining the SOFC mode of the RSOC, maintaining jointly driving the ship driving
device by the lithium battery pack and the RSOC, continuing receiving of the current
signal and the voltage signal of the RSOC in the SOFC mode, calculating the power of the
RSOC, determining whether the power of the RSOC is greater than the power of the ship
driving device, and if the power of the RSOC is greater than the power of the ship driving
device, performing the last step; and
the docking phase comprises the following step: in response to a docking signal,
disconnecting the lithium battery pack and the RSOC from the power distribution module,
and stopping operation of the RSOC, wherein the lithium battery pack is charged via a
shore power supply if a battery level thereof is lower than a preset battery level.
Solar energy collection plate 12 Hydrogen Oxygen heat 17 heat exchanger exchanger
First phase change 15 13 heat reservoir Reformer
8 14 Mixer Oxygen 21 compressor 9 RSOC
Anode 31
Cathode Hydrogen Evaporator Power Power supply distribution compressor module module
Electricity Charging 4 1/5
Second 2 3 16 load module phase Hydrogen Water Oxygen change storage storage storage heat tank tank tank 7 Lithium reservoir battery 6 pack
11 SOFC SOEC Thermal energy flow direction
FIG. 1
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020109545714 | 2020-09-11 | ||
| CN202010954571.4A CN112038664B (en) | 2020-09-11 | 2020-09-11 | Power system of hybrid lithium battery pack and reversible solid oxide battery and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020102830A4 true AU2020102830A4 (en) | 2020-12-10 |
Family
ID=73588766
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| Application Number | Title | Priority Date | Filing Date |
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| AU2020102830A Ceased AU2020102830A4 (en) | 2020-09-11 | 2020-10-17 | Hybrid Lithium Battery Pack-Reversible Solid Oxide Cell Power System and Application thereof |
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| CN (1) | CN112038664B (en) |
| AU (1) | AU2020102830A4 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112721729A (en) * | 2020-12-29 | 2021-04-30 | 联合汽车电子有限公司 | Control method and control system of battery |
| CN114520342A (en) * | 2022-02-18 | 2022-05-20 | 电子科技大学 | Energy bidirectional conversion device based on strontium ferrite electrode catalysis layer |
| CN116526684A (en) * | 2023-06-30 | 2023-08-01 | 中国科学院宁波材料技术与工程研究所 | Electric energy storage device and system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112993347A (en) * | 2021-05-18 | 2021-06-18 | 浙江国氢能源科技发展有限公司 | Energy device and power generation system based on solid oxide battery |
| CN113506891A (en) * | 2021-08-06 | 2021-10-15 | 大连海事大学 | Modularized solid oxide fuel cell system |
| CN116505042B (en) * | 2023-06-30 | 2024-01-26 | 中石油深圳新能源研究院有限公司 | Hydrogen production device and fuel cell coupled hydrogen production power generation system |
| CN117117962B (en) * | 2023-08-25 | 2024-02-20 | 西安交通大学 | RSOC-based multi-energy complementary building distributed energy supply system and operation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8637197B2 (en) * | 2011-03-28 | 2014-01-28 | Robert J. Braun | High efficiency, reversible flow battery system for energy storage |
| CN204289610U (en) * | 2014-12-25 | 2015-04-22 | 中国矿业大学(北京) | A kind of cogenerator of solar energy-reversible fuel cell |
| DK3281245T3 (en) * | 2015-04-08 | 2020-03-23 | Sunfire Gmbh | PROCEDURE FOR HEAT CONTROL OF A HIGH-TEMPERATURE-WATER-Vapor ELECTRICAL OR REVERSIBLE HIGH-TEMPERATURE-FUEL CELL AND HIGH-TEMPERATURE-WATER-VAPOR-ELECTRICAL TEMPERATURE-TEMPERATURE-TEMPERATURE-TEMPERATURE-TEMPERATURE-TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURES |
| CN105576273B (en) * | 2015-12-11 | 2017-12-08 | 西安交通大学 | A kind of Reversible Cycle green energy resource converting system and conversion method |
| FR3056230B1 (en) * | 2016-09-19 | 2020-02-28 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | HIGH-TEMPERATURE WATER REVERSIBLE ELECTROLYSIS SYSTEM COMPRISING A HYDRIDE TANK COUPLED TO THE ELECTROLYSER |
| CN109687002B (en) * | 2018-11-13 | 2022-09-16 | 中广核研究院有限公司 | Distributed combined cooling heating and power system |
-
2020
- 2020-09-11 CN CN202010954571.4A patent/CN112038664B/en active Active
- 2020-10-17 AU AU2020102830A patent/AU2020102830A4/en not_active Ceased
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112721729A (en) * | 2020-12-29 | 2021-04-30 | 联合汽车电子有限公司 | Control method and control system of battery |
| CN112721729B (en) * | 2020-12-29 | 2023-03-03 | 联合汽车电子有限公司 | Control method and control system of battery |
| CN114520342A (en) * | 2022-02-18 | 2022-05-20 | 电子科技大学 | Energy bidirectional conversion device based on strontium ferrite electrode catalysis layer |
| CN114520342B (en) * | 2022-02-18 | 2024-03-19 | 电子科技大学 | Energy bidirectional conversion device based on strontium ferrite electrode catalytic layer |
| CN116526684A (en) * | 2023-06-30 | 2023-08-01 | 中国科学院宁波材料技术与工程研究所 | Electric energy storage device and system |
| CN116526684B (en) * | 2023-06-30 | 2024-04-05 | 中国科学院宁波材料技术与工程研究所 | Electric energy storage device and system |
Also Published As
| Publication number | Publication date |
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| CN112038664A (en) | 2020-12-04 |
| CN112038664B (en) | 2024-02-09 |
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