CN108183521A - Reserve battery preserves system, method and energy-storage system - Google Patents
Reserve battery preserves system, method and energy-storage system Download PDFInfo
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- CN108183521A CN108183521A CN201711408911.8A CN201711408911A CN108183521A CN 108183521 A CN108183521 A CN 108183521A CN 201711408911 A CN201711408911 A CN 201711408911A CN 108183521 A CN108183521 A CN 108183521A
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- reserve battery
- battery module
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- reserve
- discharge
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- 238000004146 energy storage Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims description 16
- 238000007667 floating Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000004321 preservation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005779 cell damage Effects 0.000 description 1
- 208000037887 cell injury Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- H02J7/0022—
-
- 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
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- H02J7/0026—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a kind of reserve batteries to preserve system, method and energy-storage system.The system is used to persistently carry out cycle charge-discharge to reserve battery module, including：Reserve battery module；And battery charging and discharging control module, for connecting external power supply and connecting the reserve battery module, cycle charge-discharge is carried out to reserve battery module, including：It discharges reserve battery module, when be discharged to meet it is preset electric discharge stop condition when, stopping is allowed to discharge through external power supply and charges to the reserve battery module, when charge to meet preset charging stop condition when, stop charging and simultaneously discharge reserve battery module；The stop condition that discharges is the condition that reserve battery module is avoided to be damaged due to low battery.The present invention preserves system by reserve battery and slowly carries out cycle charge-discharge to reserve battery module, ensure that reserve battery module can be spare for a long time, the battery modules in energy-storage system can be easily replaced when something goes wrong.
Description
Technical field
The present invention relates to field of batteries, preserve system more particularly to a kind of reserve battery, further relate to a kind of reserve battery
Store method and a kind of energy-storage system.
Background technology
Energy-storage system is made of multiple battery clusters confluence, and battery cluster is made of multiple battery modules, general one
Box-type energy storage system has tens a battery modules up to a hundred.Energy-storage system projected life be often 10 years, 15 years or more long, storing up
In energy running, it often will appear the situation that battery modules are damaged, needed replacing, this just needs to give energy storage system in design
System prepares reserve battery module.
A kind of traditional scheme is in the energy-storage system of project where simply reserve battery is placed on.But battery is being stored
When, in the case where not charging, there are one the processes of self discharge for battery.When battery does not charge for a long time, the electricity of battery will be vented,
Platform voltage until being far below battery, battery spare in this way may be not achieved long-term prior to running cell damage
Spare effect.Reserve battery is stored in warehouse simultaneously can increase cost, and scene occurs needing replacing battery modules
Situation when, freight charges are higher while haulage time is long.
Another scheme is that the battery modules of producer are directly bought when needing replacing.But in actually using, battery core update
It regenerates fast, modular structure design also updates soon, this can not find when resulting in needing replacing battery modules and former module
The battery modules exactly matched in battery core parameter and structure design make client lose bigger.
Invention content
Based on this, it is necessary to which the problem of easily being damaged for existing spare battery because of self discharge provides a kind of spare
Battery conservation system, method and energy-storage system.
A kind of reserve battery preserves system, and the system is wrapped for persistently carrying out cycle charge-discharge to reserve battery module
It includes：The reserve battery module；And battery charging and discharging control module, for connecting external power supply and connecting the reserve battery mould
Group carries out cycle charge-discharge to the reserve battery module, including：It discharges reserve battery module, meets when being discharged to
During preset electric discharge stop condition, stopping is allowed to discharge through the external power supply and charges to the reserve battery module, when
Charge to meet it is preset charging stop condition when, stop charge simultaneously discharges reserve battery module；The electric discharge stops
Condition is the condition that the reserve battery module is avoided to be damaged due to low battery.
The battery charging and discharging control module includes in one of the embodiments,：Uninterruptible power supply, it is external for connecting
Power supply simultaneously connects the reserve battery module；And processor, the reserve battery module and the uninterruptible power supply are connected, is used for
Cycle charge discharge electric control is carried out to the uninterruptible power supply according to the electric discharge stop condition and charging stop condition.
Battery management unit is further included in one of the embodiments, connects the reserve battery module and processor, is used
In the battery parameter for acquiring the reserve battery module.
The electric discharge stop condition is less than for the battery capacity of the reserve battery module and puts in one of the embodiments,
Electricity stops electricity, and for the charging stop condition for the reserve battery module is full of, the battery parameter includes battery capacity,
The processor obtains the battery capacity by the battery management unit.
It further includes in one of the embodiments,：Load, connect with the uninterruptible power supply；And switch, at least one
Divide load in series；The processor is used to control the opening and closing of the switch to adjust the velocity of discharge of the reserve battery module.
A kind of energy-storage system, including energy-storage system main body, the energy-storage system main body includes multiple battery modules, further includes
Aforementioned reserve battery preserves system, and the reserve battery preserves the reserve battery module of system and the energy-storage system main body
Battery modules are identical battery modules.
A kind of reserve battery store method, including：It discharges reserve battery module；When the reserve battery module is put
To when meeting preset electric discharge stop condition, stopping is allowed to discharge through external power supply and the reserve battery module is filled electricity
Electricity；The electric discharge stop condition is the condition that the reserve battery module is avoided to be damaged due to low battery；When the standby electricity
Pond module charges to when meeting preset charging stop condition, stops charging and returning described discharging to reserve battery module
The step of, cycle charge-discharge is repeated；And it is replaced in the battery modules failure for knowing main system using reserve battery module
Change the battery modules of the failure.
The electric discharge stop condition is less than for the battery capacity of the reserve battery module and puts in one of the embodiments,
Electricity stops electricity, and the charging stop condition stops electricity for the battery capacity of the reserve battery module higher than charging.
The electric discharge stops 10% of electricity for battery capacity, the charging stop condition in one of the embodiments,
For the battery modules are full of.
After the reserve battery module is full of in one of the embodiments, the method is further included to the standby electricity
Pond module floating charge preset duration, then stop charging and return to described the step of discharging reserve battery module.
Above-mentioned reserve battery preserves system, and preserving system by reserve battery slowly recycles reserve battery module
Charge and discharge are switched to charging when battery discharge to electric discharge stop condition, ensure that reserve battery module can be spare for a long time,
Battery modules in system body (such as energy-storage system) can be easily replaced when something goes wrong, eliminate system body
Time for delaying of battery modules failure replacement and loss interests.
Description of the drawings
Fig. 1 is the block diagram that reserve battery preserves system in an embodiment；
Fig. 2 is the block diagram that reserve battery preserves system in another embodiment；
Fig. 3 is the block diagram that reserve battery preserves system in another embodiment；
Fig. 4 is a kind of flow chart of reserve battery store method in an embodiment.
Specific embodiment
In give the present invention preferred embodiment.But the present invention can realize in many different forms, not
It is limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is to make to the disclosure more
Thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The normally understood meaning of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " including one or more phases
The arbitrary and all combination of the Listed Items of pass.
Fig. 1 is the block diagram that reserve battery preserves system in an embodiment.Reserve battery preserves system and is used for reserve battery
Module continues slowly to carry out cycle charge-discharge, including battery charging and discharging module 20 and reserve battery module 30.Battery charging and discharging
Control module 20 connects external power supply 10 and reserve battery module 30, and cycle charge-discharge is carried out to reserve battery module 30.Cycle
The flow of charge and discharge includes：Discharge reserve battery module 30, when be discharged to meet it is preset electric discharge stop condition when, stop
It is only allowed to discharge through external power supply 10 to charge to reserve battery module 30, meets preset charging stop condition when charging to
When, stop charging and discharging to reserve battery module 30.It is understood that be easily damaged during battery discharge to low battery, because
This preset electric discharge stop condition is the condition that reserve battery module 30 is avoided to be damaged due to low battery.
Above-mentioned reserve battery preserves system, and preserving system by reserve battery slowly follows reserve battery module 30
Ring charge and discharge are switched to charging when battery discharge to electric discharge stop condition, ensure that reserve battery module 30 can be for a long time
Spare, the battery modules in system body (such as energy-storage system) can be easily replaced when something goes wrong, eliminated and be
The time and the interests of loss that the battery modules failure replacement of system main body delays.
In one embodiment, external power supply 10 is the alternating current of alternating current 220V.It is the most convenient using alternating current as power supply,
Commercial power, generator, accumulator of 380V etc. may be used in other embodiment as external power supply.
In one embodiment, battery charging and discharging control module 20 includes uninterruptible power supply (UPS) and processor.Referring to figure
2, in this embodiment, the connection external power supplies 10 of UPS 22 and reserve battery module 30 can meet reserve battery module 30
The electricity scope of application.
In the embodiment depicted in figure 2, reserve battery preserves system and further includes battery management unit 40, connects reserve battery
Module 30 and processor 24, for acquiring the battery parameter of reserve battery module 30, such as the temperature of battery, voltage, electricity etc..
Battery management unit 40 can also can voluntarily be researched and developed directly using the known BMS (battery management system) in this field by producer
Manufacture can realize the battery management unit 40 of corresponding function.
Processor 24 connects battery management unit 40 and UPS 22, for according to electric discharge stop condition and charging stop condition
Cycle charge discharge electric control is carried out to UPS 22, i.e. reserve battery module 30 is discharged to satisfaction electric discharge in UPS 22 and stopped by processor 24
Only during condition, UPS 22 is switched to the pattern to charge by external power supply 10 to reserve battery module 30；In UPS 22
When reserve battery module 30 is charged to satisfaction charging stop condition, UPS 22 is switched to battery mode, to reserve battery mould
30 electric discharge of group.
In one embodiment, the quantity of reserve battery module 30 is multiple, could preferably meet system body in this way
Battery back up demand.
Can be each reserve battery in the embodiment for preserving that system includes multiple reserve battery modules 30 in reserve battery
Module 30 is equipped with a battery management unit 40.I.e. each reserve battery module 30 connects a battery management unit 40, respectively
Battery management unit 40 is then connected to processor 24, and battery management unit 40 is additionally operable to carry out actively each reserve battery module 30
Electric quantity balancing processing.When processor 24 can judge charge/discharge according to 40 collected battery parameter of battery management unit
Whether reserve battery module 30 reaches charging stop condition/electric discharge stop condition.
Fig. 3 is the block diagram that reserve battery preserves system in another embodiment, introduces itself and embodiment illustrated in fig. 2 below
Difference.In this embodiment, reserve battery preserves system and further includes switch QF1 and switch QF2, in one embodiment
In, air switch may be used in the two switches.In one embodiment, switch QF1 can be controlled by processor 24 and is opened
The opening and closing of QF2 is closed, such as in the embodiment shown in fig. 3, processor 24 controls opening for switch QF1 by contact C1, C2, l2, l4
It closes.
In the embodiment shown in fig. 3, including N number of reserve battery module 30 and corresponding N number of battery management unit 40
(1~BMU of BMU N).
In one embodiment, UPS 22 is to be discharged by load reserve battery module 30.Due to processor 24,
40 grade of battery management unit inherently needs to continue consumption electric energy, therefore can directly use battery charge and discharge in some embodiments
Electric module is as load.In the embodiment shown in fig. 3, load includes load 52, load 54 and load 56, wherein load 56 is with opening
QF2 series connection is closed, so as to control the velocity of discharge of reserve battery module 30 by switching the opening and closing of QF2.
In the embodiment shown in fig. 3, UPS 22 is also used as the main of the systems such as processor 24, battery management unit 40
The emergency power supply of control device, UPS 22 are grounded (PE).Charge and discharge control is carried out to reserve battery module 30 using UPS, is being stopped
The longer crash time can be obtained in the case of electric (mains failure).In one embodiment, processor 24 can also be must
UPS 22 is switched to bypass mode when wanting.
In one embodiment, electric discharge stop condition is less than the 10% of battery capacity for battery capacity, and charge stop condition
For reserve battery module 30 is full of.In other embodiments, electric discharge stop condition can also use the voltage of battery as threshold
Value or the pattern for using electric discharge duration constant.
In one embodiment, reserve battery module 30 needs to carry out the floating charge of a period of time again, then open after being full of
Begin to discharge.The duration of floating charge can be set as an empirical value.I.e. entire charge and discharge cycles are：UPS 22 is in battery mode,
Each reserve battery module 30 is controlled to discharge by load --- when being discharged to battery capacity only surplus 10%, processor 24 will
UPS 22 is switched to utility mode, is charged by alternating current to each reserve battery module 30 --- and reserve battery module 30 is full of
Afterwards carry out a period of time floating charge --- UPS 22 is switched to battery mode by processor 24, each reserve battery module 30 is passed through
Load discharge.After reserve battery preserves system starts, the duration of discharge step and a charge and discharge cycles is generally not
It is calculated, also without controlling manually, therefore when designing reserve battery preservation system, it can be by adjusting reserve battery mould
The quantity of group 30, power consumption, the size of charging current of load etc. adjust the duration of a charge and discharge cycles.It should be understood that one
Secondary charge and discharge cycles interval duration is for example too short also to be adversely affected the service life of reserve battery module 30.In one embodiment
In, it is 1 month or several moons by a charge and discharge cycles interval duration control.
In the embodiment shown in fig. 3, between processor 24 and UPS 22 communicated by RS232 interface, processing
Between device 24 and battery management unit 40 communicated by CAN bus.
The present invention also provides a kind of energy-storage systems, are protected including the reserve battery of energy-storage system main body and any of the above-described embodiment
Deposit system.Energy-storage system main body includes multiple battery modules, and reserve battery preserves the reserve battery module and energy-storage system of system
The battery modules of main body are identical battery modules, in this way when the battery modules of energy-storage system main body break down, can be incited somebody to action
The reserve battery module of reserve battery preservation system removes the battery modules to replace failure.
In one embodiment, the reserve battery module of the battery modules of energy-storage system and reserve battery preservation system is
Lithium battery module.
The present invention also provides a kind of reserve battery store methods, include the following steps：
S110 discharges to reserve battery module.
In one embodiment, reserve battery store method can use the reserve battery of any of the above-described embodiment to preserve system
System carries out the preservation of reserve battery module, therefore can be to reserve battery module in this step using battery charging and discharging control module
It discharges.
S120, when being discharged to satisfaction electric discharge stop condition, stopping is allowed to discharge through external power supply to reserve battery module
It charges.
In the present embodiment, when reserve battery module, which is discharged to, meets preset electric discharge stop condition, stop electric discharge simultaneously
It is charged by external power supply to reserve battery module.Electric discharge stop condition is avoids reserve battery module due to low battery
The condition of damage.
In one embodiment, electric discharge stop condition is less than the 10% of battery capacity for battery capacity, and charge stop condition
For reserve battery module 30 is full of.In other embodiments, electric discharge stop condition can also use the voltage of battery as threshold
Value (stopping electric discharge when i.e. the voltage of reserve battery module is less than preset threshold value) or using the constant pattern of duration of discharging (
Electric discharge duration stops electric discharge when reaching preset threshold value).
S130 when reserve battery module charges to satisfaction charging stop condition, stops charging.
When reserve battery module, which charges to, meets preset charging stop condition, stop charging and return to step S110,
Cycle charge-discharge is repeated.In one embodiment, charging stop condition is full of for reserve battery module.
During above-mentioned reserve battery store method is used, once the battery in system body (such as energy-storage system)
Module goes wrong, and reserve battery module should just be used to replace the battery modules of failure.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of reserve battery preserves system, which is characterized in that the system is used to persistently recycle reserve battery module
Charge and discharge, including：
The reserve battery module；And
Battery charging and discharging control module, for connecting external power supply and connecting the reserve battery module, to the reserve battery
Module carries out cycle charge-discharge, including：It discharges reserve battery module, meets preset electric discharge stop condition when being discharged to
When, stopping is allowed to discharge through the external power supply and charges to the reserve battery module, meets preset fill when charging to
During electric stop condition, stop charging and discharging to reserve battery module；The electric discharge stop condition is described spare to avoid
The condition that battery modules are damaged due to low battery.
2. reserve battery according to claim 1 preserves system, which is characterized in that the battery charging and discharging control module packet
It includes：
Uninterruptible power supply, for connecting external power supply and connecting the reserve battery module；And
Processor connects the reserve battery module and the uninterruptible power supply, for stop condition and being filled according to the electric discharge
Electric stop condition carries out cycle charge discharge electric control to the uninterruptible power supply.
3. reserve battery according to claim 2 preserves system, which is characterized in that further includes battery management unit, connects
The reserve battery module and processor, for acquiring the battery parameter of the reserve battery module.
4. reserve battery according to claim 3 preserves system, which is characterized in that the electric discharge stop condition is described standby
Stop electricity less than electric discharge with the battery capacity of battery modules, the reserve battery module is is filled by the charging stop condition
Full, the battery parameter includes battery capacity, and the processor obtains the battery capacity by the battery management unit.
5. reserve battery according to claim 2 preserves system, which is characterized in that further includes：
Load, connect with the uninterruptible power supply；And
Switch, at least part load in series；The processor is described spare to adjust for controlling the opening and closing of the switch
The velocity of discharge of battery modules.
6. a kind of reserve battery store method, including：
It discharges reserve battery module；
When the reserve battery module, which is discharged to, meets preset electric discharge stop condition, stopping is allowed to discharge through external power supply pair
The reserve battery module charges；The electric discharge stop condition is avoids the reserve battery module from being damaged due to low battery
Bad condition；
When the reserve battery module, which charges to, meets preset charging stop condition, stop charging and returning described to spare
The step of battery modules are discharged, cycle charge-discharge is repeated；And
The battery modules of the failure are replaced using reserve battery module in the battery modules failure for knowing main system.
7. according to the method described in claim 6, it is characterized in that, the electric discharge stop condition is the reserve battery module
Battery capacity stops electricity less than electric discharge.
8. the method according to the description of claim 7 is characterized in that the electric discharge stops 10% that electricity is battery capacity, institute
Charging stop condition is stated as the reserve battery module is full of.
9. according to the method described in claim 8, it is characterized in that, after the reserve battery module is full of, the method is also wrapped
It includes to the reserve battery module floating charge preset duration, then stops charging and return and described discharge reserve battery module
Step.
10. a kind of energy-storage system, including energy-storage system main body, the energy-storage system main body includes multiple battery modules, feature
It is, further includes the reserve battery as described in any one of claim 1-5 and preserve system, the reserve battery preserves system
Reserve battery module is identical battery modules with the battery modules of the energy-storage system main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711408911.8A CN108183521A (en) | 2017-12-22 | 2017-12-22 | Reserve battery preserves system, method and energy-storage system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711408911.8A CN108183521A (en) | 2017-12-22 | 2017-12-22 | Reserve battery preserves system, method and energy-storage system |
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| CN108183521A true CN108183521A (en) | 2018-06-19 |
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ID=62546741
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| CN201711408911.8A Pending CN108183521A (en) | 2017-12-22 | 2017-12-22 | Reserve battery preserves system, method and energy-storage system |
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| CN108872874A (en) * | 2018-06-29 | 2018-11-23 | 国网山东省电力公司惠民县供电公司 | A kind of detection method and device of optical transmitter and receiver backup power source |
| CN109586395A (en) * | 2018-10-16 | 2019-04-05 | 深圳市科陆电子科技股份有限公司 | Uninterrupted power supply intelligently switches and monitoring method |
| CN112000047A (en) * | 2020-09-07 | 2020-11-27 | 广东众科智能科技股份有限公司 | Remote intelligent monitoring system |
| WO2022247904A1 (en) * | 2021-05-28 | 2022-12-01 | International Business Machines Corporation | Battery state of charge management for storage |
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