CN111048853A - Battery cell system - Google Patents
Battery cell system Download PDFInfo
- Publication number
- CN111048853A CN111048853A CN201911292255.9A CN201911292255A CN111048853A CN 111048853 A CN111048853 A CN 111048853A CN 201911292255 A CN201911292255 A CN 201911292255A CN 111048853 A CN111048853 A CN 111048853A
- Authority
- CN
- China
- Prior art keywords
- battery cell
- battery
- memory
- cell system
- cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a battery cell system, which at least comprises a battery cell, wherein the battery cell comprises a battery cell body and at least one memory, and the memory is used for storing data information of the corresponding battery cell body. According to the invention, the monitoring module with the storage function is arranged on each battery cell monomer, so that the parameters of each battery cell monomer and surrounding environment in working and non-working states can be stored in real time, and the stored data information cannot be lost along with the transfer of the battery cell.
Description
Technical Field
The present disclosure relates to battery systems, and particularly to a battery system for independently monitoring battery cells.
Background
The lithium battery is the most widely used electrochemical energy storage element at present, and due to the special structure and characteristics of the lithium battery, the battery monitoring and management circuit is an essential part in a lithium battery application system. In the current lithium battery application, for a small battery with a single battery cell, each battery is generally provided with a battery protection plate; and the battery pack with a plurality of battery cells connected in series and parallel is provided with a battery management system in the whole pack. The core of the battery protection circuit and the battery management system is a lithium battery protection and management chip. The simple lithium battery protection chip can realize overvoltage, overcurrent and overtemperature protection; the management system of the lithium battery pack comprises a special chip, a single chip microcomputer and other devices, and monitors and manages the whole battery pack and all serial-parallel units in the battery pack.
The defects of the prior art are limited, and the following defects exist in the aspects of lithium battery monitoring and management at present:
1. the management chip of the lithium battery is mainly used for monitoring the charging and discharging processes of the battery in real time, realizing overvoltage, overcurrent and overtemperature protection, does not have the capability of acquiring detailed information of the working state of a single battery core, and needs higher-level intervention of a battery management system for the values of current, voltage, temperature and the like.
2. At present, the charge and discharge protection chip of the lithium battery controls the work of the battery in real time and has no detailed information recording capacity of the working state of the battery. Even if data collection and recording are performed through the battery management system, the data are stored on the computer of the application system, namely, the terminal computer, and important historical information of the battery cannot be tightly bound with the battery. For battery cascading, one battery needs to serve multiple application systems, and when a lithium battery is migrated from one user system to another, historical data of the battery is difficult to obtain and utilize.
3. The battery management system only monitors and protects the charging and discharging of the lithium battery in the working system, and other links such as storage, transportation and the like are monitoring blind areas. For example, the monitoring of the temperature of the battery or the ambient temperature cannot be controlled in real time, and once the temperature of the battery rises due to the problem of the battery or the poor ambient environment, and further, a fire disaster is caused, the user cannot monitor and prepare in advance.
Disclosure of Invention
The invention aims to provide a battery cell system which can monitor and record parameters and environmental parameters of a battery cell in real time under the working state and the non-working state of the battery cell.
In order to achieve the foregoing object, the present invention provides a battery cell system, which at least includes a battery cell, where the battery cell includes a battery cell and at least one memory, and the memory is configured to store data information corresponding to the battery cell.
As a further improvement of the present invention, the cell system includes a plurality of cells connected in series or in parallel or in series and parallel.
As a further improvement of the present invention, the battery cell includes a monitoring module electrically connected to the corresponding battery cell, and the memory is integrated on the monitoring module.
As a further improvement of the present invention, the monitoring module includes a monitoring chip, a sensor, and a sampling device, and is configured to collect data information on the corresponding cell unit.
As a further improvement of the invention, the memory can be integrated on the monitoring chip, or integrated in the monitoring module in parallel with the monitoring chip, or both.
As a further improvement of the present invention, the data information stored in the memory includes data in a working state of the battery cell, environmental data around the battery cell, pre-stored raw data, and a result of performing calculation processing on the data information.
As a further improvement of the present invention, the data of the cell operating state includes voltage, current, temperature, and the like.
As a further improvement of the present invention, the data of the environment around the battery cell include temperature, humidity, pressure, vibration intensity, and the like.
As a further improvement of the invention, the memory comprises one or more of Flash memory, EEPROM memory and RAM memory.
The invention has the beneficial effects that:
the invention provides a battery cell system, which has the following advantages compared with the prior art:
1. each battery cell is provided with a memory independently to store the working condition, the internal state and the external environment data of a single lithium battery cell; compared with the existing battery management system of the battery pack, the monitoring module can acquire and monitor information of each battery cell, and control the information more finely and accurately.
2. The acquired historical data and event information of the battery core are stored in an on-chip or off-chip memory and are carried and transferred by the battery core in the whole life cycle of the battery core, so that the recording and query functions of the whole life cycle data of the battery core independent of an application system are realized.
Drawings
Fig. 1 is a schematic structural diagram of a lithium battery system including a cell system according to the present invention;
FIG. 2 is a schematic view of a monitoring module according to the present invention;
FIG. 3 is a schematic diagram of a monitoring chip according to the present invention;
fig. 4 is a schematic diagram of a single cell structure according to the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to specific embodiments shown in the drawings.
The present embodiment provides a lithium battery system, as shown in fig. 1 and 2, including a battery cell management system, a battery cell application system, and a power line connecting the battery cell system and the battery cell application system. The battery cell system at least comprises a battery cell, wherein the battery cell comprises a battery cell monomer and at least one memory, and the memory is used for storing data information of the corresponding battery cell monomer.
In a specific application, the cell system may include a plurality of cells connected in series or in parallel or in series and parallel.
In this embodiment, the battery cell includes a monitoring module electrically connected to the corresponding battery cell, and the memory is integrated on the monitoring module. The monitoring module comprises a monitoring chip, a sensor and a sampling device, and is used for acquiring data information on the corresponding electric core monomer through the sensor.
In practical applications, the memory may be integrated on the monitoring chip, or integrated in the monitoring module in parallel with the monitoring chip, or both of them may be in parallel. When the storage module is arranged outside the battery cell monitoring chip, the data information read-write function with the memory is realized only by arranging an external memory interface on the battery cell monitoring chip.
In the actual use process, the data information stored in the memory includes data in the working state of the battery cell, environmental data around the battery cell, pre-stored raw data, and a result of performing calculation processing on the data information. The data of the cell working state here includes voltage, current, temperature, etc., and the data of the cell surrounding environment includes temperature, humidity, pressure, vibration intensity, etc. The pre-stored data can be set according to the product requirements, and the stored data information can be data information in a fixed sampling period or a data subset meeting preset conditions.
In an embodiment, a sensing module may be disposed on a cell body to acquire data information, and the acquired data may be updated and stored in a memory of the cell body, and may be communicated with an external management system, such as an EMS system, in a wired or wireless manner.
In another embodiment, part of the data information, such as the environmental data, may be collected by the external sensing module and then transmitted to the memory of each cell unit in a communication manner, for example, each battery pack is provided with 1 temperature sensor and 1 humidity sensor, and the obtained temperature information and humidity information are transmitted to all the cell units corresponding to the battery pack for storage.
In practical applications, the cell monitoring module and the corresponding cell unit are packaged together, as shown in fig. 4, to form an integral body that is inseparable in the whole life cycle. For example, when the battery cell is in a working state, various parameters of the battery cell itself, such as current, voltage, temperature and the like, are monitored in real time through the sensor and the sampling device, and similarly, the parameters of the surrounding environment of the battery cell are also converted into digital signals through the analog-to-digital converter after being collected by the sensor, and then the data information is stored in the memory on the monitoring module.
Therefore, in the whole life cycle, no matter whether the battery cell is in a working state or a non-working state, the data information of the battery cell and the data information of the surrounding environment can be stored in the memory corresponding to each battery cell in real time, and thus, the data information of the battery cell and the surrounding environment in the whole life cycle cannot lose data along with the transfer of the battery cell.
Based on the technical means, the invention not only solves the defects in the prior art, but also achieves various technical effects.
1. Each battery cell is provided with a memory independently to store the working condition, the internal state and the external environment data of a single lithium battery cell; compared with the existing battery management system of the battery pack, the monitoring module can acquire and monitor information of each battery cell, and control the information more finely and accurately.
2. The acquired historical data and event information of the battery core are stored in an on-chip or off-chip memory and are carried and transferred by the battery core in the whole life cycle of the battery core, so that the recording and query functions of the whole life cycle data of the battery core independent of an application system are realized.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a battery cell system which characterized in that: the battery cell comprises at least one battery cell, wherein each battery cell comprises a battery cell monomer and at least one memory, and the memories are used for storing data information of the corresponding battery cell monomers.
2. The cell system of claim 1, wherein: the cell system comprises a plurality of cells connected together in series and/or in parallel.
3. The cell system according to claim 1 or 2, wherein: the battery cell comprises a monitoring module electrically connected with the corresponding battery cell monomer, and the memory is integrated on the monitoring module.
4. The cell system of claim 3, wherein: the monitoring module comprises a monitoring chip, a sensor and a sampling device and is used for acquiring data information on the corresponding electric core monomer.
5. The cell system of claim 4, wherein: the memory can be integrated on the monitoring chip, or integrated in the monitoring module together with the monitoring chip in parallel, or both.
6. The cell system of claim 4, wherein: the data information stored in the memory comprises data in the working state of the battery cell, environmental data around the battery cell, pre-stored original data and a result of calculation processing of the data information.
7. The cell system of claim 6, wherein: the data of the working state of the battery core comprise voltage, current, temperature and the like.
8. The cell system of claim 6, wherein: and the data of the surrounding environment of the battery core comprise temperature, humidity, pressure, vibration intensity and the like.
9. The cell system of claim 3, wherein: the memory comprises one or more of a Flash memory, an EEPROM memory and a RAM memory.
10. The cell system of claim 1, wherein: in each of the battery cells, the memory is integrated on the battery cell unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911292255.9A CN111048853A (en) | 2019-12-12 | 2019-12-12 | Battery cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911292255.9A CN111048853A (en) | 2019-12-12 | 2019-12-12 | Battery cell system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111048853A true CN111048853A (en) | 2020-04-21 |
Family
ID=70236498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911292255.9A Pending CN111048853A (en) | 2019-12-12 | 2019-12-12 | Battery cell system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111048853A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024001329A1 (en) * | 2022-06-30 | 2024-01-04 | 比亚迪半导体股份有限公司 | Battery management chip and system, and vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205429773U (en) * | 2015-11-13 | 2016-08-03 | 武汉中原长江科技发展有限公司 | 270V machine carries high voltage direct current start power |
| CN107925132A (en) * | 2015-09-25 | 2018-04-17 | 英特尔公司 | Intelligent battery with integrated sensing and electronic device |
| CN108711648A (en) * | 2017-12-25 | 2018-10-26 | 宁波普瑞均胜汽车电子有限公司 | Li-ion batteries piles monomer capacity and health status on-line measurement system and method |
| CN109001637A (en) * | 2018-06-14 | 2018-12-14 | 湖北德普电气股份有限公司 | Single battery core insulation internal resistance device for quick testing and method |
| WO2019023679A1 (en) * | 2017-07-28 | 2019-01-31 | Northstar Battery Company, Llc | Systems and methods for determining an operating mode of a battery |
| WO2019072488A1 (en) * | 2017-10-12 | 2019-04-18 | Bayerische Motoren Werke Aktiengesellschaft | Energy storage device and device and method for determining a capacitance of an energy storage device |
| CN110416638A (en) * | 2019-07-12 | 2019-11-05 | 北京中宸泓昌科技有限公司 | A kind of lifecycle management system of battery cell |
-
2019
- 2019-12-12 CN CN201911292255.9A patent/CN111048853A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107925132A (en) * | 2015-09-25 | 2018-04-17 | 英特尔公司 | Intelligent battery with integrated sensing and electronic device |
| CN205429773U (en) * | 2015-11-13 | 2016-08-03 | 武汉中原长江科技发展有限公司 | 270V machine carries high voltage direct current start power |
| WO2019023679A1 (en) * | 2017-07-28 | 2019-01-31 | Northstar Battery Company, Llc | Systems and methods for determining an operating mode of a battery |
| WO2019072488A1 (en) * | 2017-10-12 | 2019-04-18 | Bayerische Motoren Werke Aktiengesellschaft | Energy storage device and device and method for determining a capacitance of an energy storage device |
| CN108711648A (en) * | 2017-12-25 | 2018-10-26 | 宁波普瑞均胜汽车电子有限公司 | Li-ion batteries piles monomer capacity and health status on-line measurement system and method |
| CN109001637A (en) * | 2018-06-14 | 2018-12-14 | 湖北德普电气股份有限公司 | Single battery core insulation internal resistance device for quick testing and method |
| CN110416638A (en) * | 2019-07-12 | 2019-11-05 | 北京中宸泓昌科技有限公司 | A kind of lifecycle management system of battery cell |
Non-Patent Citations (2)
| Title |
|---|
| BHATTACHARJEES等: "memory effect and BMS-like symmetries for impulsive gravitational waves", 《PHYSICAL REVIEW D》 * |
| 徐晴等: "终端镍氢电池充放电智能管理系统的应用研究", 《电网与清洁能源》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024001329A1 (en) * | 2022-06-30 | 2024-01-04 | 比亚迪半导体股份有限公司 | Battery management chip and system, and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111114328A (en) | Thermal runaway early warning method, device and system for power storage battery of electric automobile | |
| WO2018095039A1 (en) | Remote intelligent battery management system | |
| CN206540956U (en) | A kind of voltage acquisition system for battery pack framework | |
| CN207742531U (en) | Battery pack information acquires monitoring device | |
| WO2016112718A1 (en) | Lithium battery pack charge and discharge protection board and lithium battery pack protection system | |
| CN109065974A (en) | A kind of battery management system | |
| CN106384850B (en) | Based on wireless battery management system | |
| CN111048853A (en) | Battery cell system | |
| CN201426046Y (en) | Power management system for car high power lithium battery stack with balancing function | |
| CN111952998A (en) | Large-scale integrated energy storage system and development method | |
| CN112248879A (en) | Battery management system | |
| CN111525602A (en) | Energy storage system and energy storage device | |
| CN208015409U (en) | A kind of lithium battery management system | |
| CN111211364B (en) | Battery cell, battery cell monitoring module and chip thereof | |
| CN215644625U (en) | Battery core and battery pack | |
| CN112564246B (en) | Intelligent lithium battery management system and method capable of adjusting parameters through platform and lithium battery | |
| CN107284283A (en) | BMS devices for low-speed electronic car | |
| CN114583300A (en) | Intelligent sensing system for battery energy storage system and construction method | |
| CN210608605U (en) | Low-voltage battery system | |
| CN111211363A (en) | Battery cell system | |
| CN108075195A (en) | A kind of accumulator remote monitoring system | |
| KR102512195B1 (en) | Battery storage system and method | |
| CN111697660A (en) | Battery management system | |
| CN203135471U (en) | Cell control system and cell control and management system | |
| CN212625744U (en) | Battery management device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200421 |
|
| WD01 | Invention patent application deemed withdrawn after publication |