CN105172606A - Multi-power battery pack system and management method - Google Patents
Multi-power battery pack system and management method Download PDFInfo
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- CN105172606A CN105172606A CN201510376250.XA CN201510376250A CN105172606A CN 105172606 A CN105172606 A CN 105172606A CN 201510376250 A CN201510376250 A CN 201510376250A CN 105172606 A CN105172606 A CN 105172606A
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- battery
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The invention discloses a multi-power battery pack system and management method. The multi-power battery pack system is composed of two or three battery pack units and a corresponding battery management system; the battery pack units adopt the same battery positive and negative electrode systems or different battery positive and negative electrode systems and are connected in parallel; the battery pack units are formed by connecting a plurality of batteries adopting the same battery positive and negative electrode system in series, in parallel or in a series-parallel-connection mode; the batteries with the same battery positive and negative electrode systems are lithium ion batteries or supercapacitors. The lithium ion batteries comprise ternary batteries or phosphoric acid iron batteries. The advantages of the battery pack units are brought into play to work independently or coordinately according to the characteristics of the battery materials adopted by the battery pack units, so that the multi-power battery pack system has the long service life, low battery cost, high energy density and power density, good low-temperature performance and excellent safety performance, is especially suitable for power batteries and has great application value.
Description
Technical field
The present invention relates to cell art, particularly relate to a kind of polynary power battery pack system and management process.
Background technology
At present, the traditional chemical energy is day by day exhausted, and environmental problem is increasingly serious, and new forms of energy receive the attention of various countries.In recent years, new-energy automobile, particularly electronlmobil receive very big concern, under the support energetically of various countries, have obtained great development.But current electronlmobil also exists great defect, limit it and promote and development.Present stage, the problem of electronlmobil mainly concentrated on electrical source of power aspect.The electrical source of power mainly lithium ion battery of current electronlmobil, divide by main flow route and have two individual system, one is ternary battery, and one is ferric phosphate lithium cell.This two individual system has respective merits and faults.Ternary material energy density is high, but cost is also high, poor stability, and cycle performance is poor.The electrical source of power of this material mainly with the tesal electronlmobil of the U.S. for representative.The course continuation mileage of the full electricity of this automobile can reach 400 kilometers, but price is also high, and wherein battery account for sizable ratio, is unfavorable for applying of new forms of energy.It is low that ferric phosphate lithium cell has cost, and safety is good, the advantage that cyclicity is good, but energy density is low, poor performance at low temperatures, and high rate performance is also not as ternary battery.This battery mainly with the electronlmobil of each famous brand of China and passenger vehicle for representative.It is relatively low that this type of electronlmobil has price, safety, the feature that cyclicity is good, but course continuation mileage can only reach 150 kilometers reluctantly, and poor performance at low temperatures, high rate performance is also not as ternary battery.From seeing here, often kind of battery has respective merits and faults, and the products such as existing electronlmobil are all based on a kind of battery, so some shortcomings are difficult to avoid.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of polynary power battery pack system.
The another one technical matters that the present invention will solve is to provide a kind of management process of polynary power battery pack system.
For polynary power battery pack system, the technical solution used in the present invention is: a kind of polynary power battery pack system, and polynary power battery pack system to be connected with parallel way by 2 or 3 battery assembly modules and is furnished with corresponding battery management system and formed; 2 or 3 battery assembly modules adopt similar and different battery plus-negative plate system respectively; Battery assembly module is connected and composed with series, parallel or series-parallel system by the battery of a plurality of employing same battery both positive and negative polarity system; The battery of same battery both positive and negative polarity system is lithium ion battery or ultracapacitor.
As preferably, lithium ion battery comprises ternary battery or ferric phosphate lithium cell.
For the management process of polynary power battery pack system, the technical solution used in the present invention is: comprise the following steps:
(1) in the polynary electrokinetic cell system be made up of 2 battery assembly modules, the 1st battery assembly module is responsible for the daily traveling of electronlmobil, and the 2nd battery assembly module is used for the 1st batteries charging or for using in high-power charge or discharge situation; 1st battery assembly module is connected with the driving of motor by having switched with the 2nd battery assembly module; Described 2 battery assembly modules are adopt similar and different battery plus-negative plate system;
(2) in the polynary electrokinetic cell system be made up of 3 battery assembly modules, the 1st battery assembly module and the 2nd battery assembly module are responsible for the daily short range of electronlmobil and are travelled, and the 2nd battery assembly module and the 3rd battery assembly module are responsible for the traveling more growing distance; 1st battery assembly module, the 2nd battery assembly module are connected with the driving of motor by having switched with the 3rd battery assembly module; Described 3 battery assembly modules are adopt similar and different battery plus-negative plate system.
The invention has the beneficial effects as follows:
Existing electronlmobil is generally the battery using homogenous material kind, such as entirely uses ternary battery, or entirely uses ferric phosphate lithium cell, as a battery system.By such combination, and carry out unified management with battery management system, each battery assembly module is made to have given play to the functionality advantage of different battery material used, improve shortcoming, improve the energy density of whole battery pack, ensure safety performance and cycle performance, improve low-temperature properties, reduce battery pack cost, environmental friendliness.The present invention can well meet the current requirement to electrokinetic cell, also has great application potential in other battery applications field.
Detailed description of the invention
Embodiment 1
The present embodiment is a kind of polynary power battery pack system for electrocar.This system is composed in parallel by 2 battery assembly modules.
1st battery assembly module is ferric phosphate lithium cell group unit, this battery assembly module be all by 1965140 of 13Ah square LiFePO4-graphite cell with 2 and 100 string modes formed, capacity is about 8KWh, the routine use of primary responsibility electronlmobil, the electricity of this battery assembly module can maintain electric automobile during traveling 80 kilometers.
2nd battery assembly module is ternary (nickel cobalt manganese system) battery assembly module, this battery assembly module be all by 1965140 of 13.5Ah square ternarys (111 type nickel cobalt manganese system)-graphite cell with 4 and 88 string, capacity is 18KWh, the long distance of primary responsibility electronlmobil uses, and the electricity of this battery assembly module can ensure electric automobile during traveling 180 kilometers.
Use and management process
In the routine use of electronic electrocar, all use the 1st battery assembly module (ferric phosphate lithium cell group unit) drive motor.
When estimating that electronlmobil needs fast charge, the 2nd battery assembly module (ternary battery assembly module) can be switched to for first to use power supply, or the 2nd battery assembly module (ternary battery assembly module) can be utilized to be the 1st battery assembly module (ferric phosphate lithium cell group unit) charging, the advantage of the high rate capability of the 2nd battery assembly module (ternary battery assembly module) can be utilized so fast to the charging of ternary battery assembly module when using external power supply charging, to ensure that whole polynary battery pack system has the ability of fast charge.Simultaneously, preferentially can use the 2nd battery assembly module (ternary battery assembly module) at low ambient temperatures, the heat that in use procedure, the 2nd battery assembly module (ternary battery assembly module) distributes helps the 1st battery assembly module (ferric phosphate lithium cell group unit) to reach suitable operating temperature requirements, improves the low-temperature properties of whole battery pack system with this.
When high power discharges such as startup or climbings, the 2nd battery assembly module (ternary battery assembly module) work can be switched to.
Whole polynary battery pack system is managed by battery management system, ensures the switching carried out under different usage condition between battery assembly module.Due to routine use mainly the 1st battery assembly module (ferric phosphate lithium cell group unit), ferric phosphate lithium cell group unit has good safety performance and cycle performance, can ensure that whole battery pack system has longer life-span and safety performance.Meanwhile, the 2nd battery assembly module (ternary battery assembly module) also can meet operating needs and the low temperature requirements of the longer distance of electronlmobil, and the demand of in particular cases fast charge.Can independent replacing be carried out when a battery assembly module goes wrong wherein, and not need to change whole polynary battery pack systems, thus cost-saving.In sum, whole polynary power battery pack system has close to long life of ferric phosphate lithium cell group, high security, and close to the high-energy-density of ternary battery pack and power density, good low-temperature properties and high rate performance, and the cost of whole polynary power battery pack system is because the cost that a part is ferric phosphate lithium cell group and purer ternary battery pack obviously reduces, and environmental friendliness.
Embodiment 2
The present embodiment is also a kind of polynary power battery pack system for electrocar, this system is made up of 3 battery assembly modules: the 1st battery assembly module is ultracapacitor battery group unit, it is in series by the cond of 8 2000F/30V, capacity is the high power discharge behaviors in short-term such as 2KWh, the startup of primary responsibility electronlmobil.2nd battery pack is ferric phosphate lithium cell group unit, its by the 1965140 square LiFePO4-graphite cell of 13Ah with 3 and the modes of 100 strings formed, capacity is the routine use of 12KWh, primary responsibility electronlmobil, and the electricity of this battery assembly module can maintain electric automobile during traveling 100 kilometers.3rd battery pack is also ferric phosphate lithium cell group unit, be equally all by 1965140 of 13Ah square LiFePO4-graphite cell with 3 and 100 string modes formed, capacity is 12KWh, the long distance of primary responsibility electronlmobil uses, and the electricity of this battery assembly module can ensure electric automobile during traveling 100 kilometers.
Use and management process:
In routine use, mainly start frequently in urban district and daily short range traveling, mainly lean on the 1st battery assembly module (ultracapacitor battery group unit) of battery system and the 2nd battery assembly module (ferric phosphate lithium cell group unit) respectively.The traveling of longer distance can be completed jointly by the 2nd and the 3rd battery assembly module (being namely all ferric phosphate lithium cell group unit).Whole polynary power battery pack system is managed by battery management system, ensures the switching of battery assembly module under different usage condition.Due to routine use mainly the 1st battery assembly module and the 2nd battery assembly module, thus ensure that the 3rd battery assembly module has longer service life, can when carrying out battery pack system and safeguarding only safeguard and change by the 1st and the 2nd battery assembly module higher to frequency of utilization, and do not need to change whole polynary power battery pack system, thus reach the object of saving maintenance cost.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (3)
1. a polynary power battery pack system, is characterized in that, described polynary power battery pack system to be connected with parallel way by 2 or 3 battery assembly modules and is furnished with corresponding battery management system and formed; Described 2 or 3 battery assembly modules adopt similar and different battery plus-negative plate system respectively; Described battery assembly module is connected and composed with series, parallel or series-parallel system by the battery of a plurality of employing same battery both positive and negative polarity system; The battery of described same battery both positive and negative polarity system is lithium ion battery or ultracapacitor.
2. polynary power battery pack system as claimed in claim 1, is characterized in that, described lithium ion battery comprises ternary battery or ferric phosphate lithium cell.
3. the battery management method of polynary power battery pack system as claimed in claim 1, is characterized in that comprising the following steps:
(1) in the polynary electrokinetic cell system be made up of 2 battery assembly modules, the 1st battery assembly module is responsible for the daily traveling of electronlmobil, and the 2nd battery assembly module is used for the 1st batteries charging or for using in high-power charge or discharge situation; 1st battery assembly module is connected with the driving of motor by having switched with the 2nd battery assembly module; Described 2 battery assembly modules are adopt similar and different battery plus-negative plate system;
(2) in the polynary electrokinetic cell system be made up of 3 battery assembly modules, the 1st battery assembly module and the 2nd battery assembly module are responsible for the daily short range of electronlmobil and are travelled, and the 2nd battery assembly module and the 3rd battery assembly module are responsible for the traveling more growing distance; 1st battery assembly module, the 2nd battery assembly module are connected with the driving of motor by having switched with the 3rd battery assembly module; Described 3 battery assembly modules are adopt similar and different battery plus-negative plate system.
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| CN201510376250.XA CN105172606A (en) | 2015-07-01 | 2015-07-01 | Multi-power battery pack system and management method |
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| CN201510376250.XA CN105172606A (en) | 2015-07-01 | 2015-07-01 | Multi-power battery pack system and management method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114142108A (en) * | 2021-10-19 | 2022-03-04 | 上汽大众汽车有限公司 | Battery system integrating different chemical systems and control method thereof |
| WO2022226748A1 (en) * | 2021-04-26 | 2022-11-03 | 宁德时代新能源科技股份有限公司 | Battery group, battery pack, electric apparatus, and manufacturing method and manufacturing device for battery group |
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| CN202863178U (en) * | 2012-09-29 | 2013-04-10 | 创意库设计事业股份有限公司 | Battery control module for electric vehicle |
| CN103072492A (en) * | 2013-01-28 | 2013-05-01 | 吉林大学 | Active control type hybrid power system for pure electric bus and control method of active control type hybrid power system |
| CN203752923U (en) * | 2014-01-10 | 2014-08-06 | 新普科技股份有限公司 | Energy storage device with composite battery output for traffic carrier |
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2015
- 2015-07-01 CN CN201510376250.XA patent/CN105172606A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20120169129A1 (en) * | 2011-01-05 | 2012-07-05 | Samsung Sdi Co., Ltd. | Energy Storage Device |
| CN202863178U (en) * | 2012-09-29 | 2013-04-10 | 创意库设计事业股份有限公司 | Battery control module for electric vehicle |
| CN103072492A (en) * | 2013-01-28 | 2013-05-01 | 吉林大学 | Active control type hybrid power system for pure electric bus and control method of active control type hybrid power system |
| CN203752923U (en) * | 2014-01-10 | 2014-08-06 | 新普科技股份有限公司 | Energy storage device with composite battery output for traffic carrier |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022226748A1 (en) * | 2021-04-26 | 2022-11-03 | 宁德时代新能源科技股份有限公司 | Battery group, battery pack, electric apparatus, and manufacturing method and manufacturing device for battery group |
| US11804637B2 (en) | 2021-04-26 | 2023-10-31 | Contemporary Amperex Technology Co., Limited | Battery module, battery pack, electric apparatus, and method and device for manufacturing battery module |
| CN114142108A (en) * | 2021-10-19 | 2022-03-04 | 上汽大众汽车有限公司 | Battery system integrating different chemical systems and control method thereof |
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Application publication date: 20151223 |
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