CN110323399A - A kind of module internal battery core arragement construction - Google Patents
A kind of module internal battery core arragement construction Download PDFInfo
- Publication number
- CN110323399A CN110323399A CN201910306743.4A CN201910306743A CN110323399A CN 110323399 A CN110323399 A CN 110323399A CN 201910306743 A CN201910306743 A CN 201910306743A CN 110323399 A CN110323399 A CN 110323399A
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- CN
- China
- Prior art keywords
- battery core
- type battery
- power
- module
- mould group
- 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.)
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Classifications
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- 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
Abstract
The invention discloses a kind of module internal battery core arragement constructions, it is formed by module and by block coupled in series at the busbar connector of mould group, the module is made of power-type battery core, energy type battery core, module bracket and cupro-nickel composite sheet, the power-type battery core is distributed in mould group top, energy type battery core is distributed in mould group lower part, and the copper-nickel composite sheet is welded on power-type battery core, in energy type battery core.The present invention is changed to power-type battery core by original energy type battery core close to the battery core of busbar connector in every group of mould group, and power-type battery core is able to bear larger charge-discharge magnification, reduces influence of the rush of current to mould group；It can reduce influence of the circulation to mould group, Lifting Modules group service life simultaneously.
Description
Technical field:
The present invention relates to a kind of module internal battery core arragement constructions, belong to field of lithium.
Background technique:
As the development of electric car industry is getting faster, the requirement on course continuation mileage and service life is also increasingly
It is high.Energy source of the power battery as electric car is the key that improve vehicle performance and reduce by one ring of cost.Lithium-ion electric
Chi Yin is bigger than energy, have extended cycle life, self-discharge rate is low, the advantages that operating temperature range is wide, cryogenic effect is good is allowed to be electronic vapour
The presently preferred power battery of vehicle.
Currently, power battery interior is carried out in groups using series-parallel system, battery core is all made of same type battery core, service life
Early period can guarantee the consistency of battery core.But after being used for a long time, a large amount of battery cores are led due to the inconsistency of temperature, size of current etc.
It causes capacity attenuation inconsistent, and then influences the service life of battery pack.In the battery core for leaning on near-lying mode group busbar connector, due to junction electric current
It is larger, the generally higher than ability to bear of single battery core, the always preferential battery core to close to confluence in battery core charge and discharge process
Charge and discharge are delayed in 1ms or so, the delay of this 1ms leads to the battery core voltage close to busbar connector, and in charging, slightly above other are electric
Core, in electric discharge, slightly below other battery cores, charge-discharge magnification are slightly larger than remaining battery core, therefore at first close to the battery core of confluence
Decaying is most easily produced, the battery core after decaying can generate module internal circulation in charge and discharge process, accelerate decaying, generate pernicious
Circulation.
To reduce influence of the rush of current to leading portion battery core, there are two types of currently used methods:
1, increase the width of busbar connector, reduce impact of the electric current to single battery core；
2, increase confluence, confluence is evenly distributed to mould group surrounding.
The above method is to share the impact of electric current bring in multiple battery cores, to reduce battery core damage.These sides
Method can bring the problems such as increased costs.Confluence, which increases, will lead to that structure is complicated, and group process difficulty increases.
Relative to energy type battery core, power-type battery core is more able to bear big multiplying power electric current, thus using power-type battery core come
The instantaneous large-current for bearing confluence is suitble to the design requirement of mould group, and power-type battery core is combined and can be opened with energy type battery core
Issue novel mould group.
Summary of the invention:
The present invention is to provide a kind of module internal battery core arragement construction to solve the above-mentioned problems of the prior art,
It, which is able to solve when electric current impacts larger problem and leading portion battery core charge and discharge to leading portion battery core at busbar connector, there are the feelings of circulation
Capacity attenuation acceleration problem under condition.
The technical solution adopted in the present invention has: a kind of module internal battery core arragement construction, by module and by module string
It is unified into the busbar connector composition of mould group, the module is by power-type battery core, energy type battery core, module bracket and cupro-nickel composite sheet group
At the power-type battery core is distributed in mould group top, and energy type battery core is distributed in mould group lower part, and the copper-nickel composite sheet is welded on
In power-type battery core, energy type battery core.
Further, module capacity is power-type battery core quantity × capacity+capacity type battery core quantity × capacity.
Further, the power-type battery core and capacity type battery core are same material system, and voltage platform is consistent.
The battery core that the invention has the following beneficial effects: the present invention in every group of mould group close to busbar connector is by original energy
Amount type battery core is changed to power-type battery core, and power-type battery core is able to bear larger charge-discharge magnification, reduces rush of current to mould group
It influences；It can reduce influence of the circulation to mould group, Lifting Modules group service life simultaneously.
Detailed description of the invention:
Fig. 1 is inside modules layout drawing.
Fig. 2 is inside modules power-type battery core layout drawing.
Fig. 3 is inside modules energy type battery core layout drawing.
Fig. 4 is mould group series connection figure.
Specific embodiment:
The present invention will be further described below with reference to the drawings.
Module internal battery core arragement construction of the present invention is formed by module and by block coupled in series at the busbar connector 5 of mould group,
Middle module is made of power-type battery core 1, energy type battery core 2, module bracket 3 and cupro-nickel composite sheet 4.Inside modules power-type electricity
Core 1 is distributed in mould group top, leans on near-lying mode group confluence.Inside modules energy type battery core 2 is distributed in mould group lower part, converges from mould group
Point is remote compared with power-type battery core 1.Cupro-nickel composite sheet 4 is welded on power-type battery core 1, in energy type battery core 2.
Wherein module capacity is power-type battery core quantity × capacity+capacity type battery core quantity × capacity.
Power-type battery core 1 and capacity type battery core 2 are same material system, and voltage platform is consistent.
Electric current passes to module internal battery core by busbar connector 5, and wherein power-type battery core 1 is at first by the impact of electric current,
Energy type battery core 2 is impacted smaller relative to power-type battery core 1.Power-type battery core 1 can more bear electric current relative to energy type battery core 2
Circulation；
Charge-discharge magnification is calculated according to module capacity, and multiplying power must not exceed the multiplying power that capacity type battery core 2 can bear.
It is described above but to be not limited to 18650 battery cores by taking 18650 battery core mould groups as an example, be also possible to square electric cell or
Soft pack cell.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
It for member, can also make several improvements without departing from the principle of the present invention, these improvement also should be regarded as of the invention
Protection scope.
Claims (3)
1. a kind of module internal battery core arragement construction, it is characterised in that: by module and by block coupled in series at the busbar connector of mould group
(5) it forms, the module is by power-type battery core (1), energy type battery core (2), module bracket (3) and cupro-nickel composite sheet (4) group
At the power-type battery core (1) is distributed in mould group top, and energy type battery core (2) is distributed in mould group lower part, the copper-nickel composite sheet
(4) it is welded on power-type battery core (1), in energy type battery core (2).
2. module internal battery core arragement construction as described in claim 1, it is characterised in that: module capacity is power-type battery core number
Amount × capacity+capacity type battery core quantity × capacity.
3. module internal battery core arragement construction as described in claim 1, it is characterised in that: the power-type battery core (1) and appearance
Amount type battery core (2) is same material system, and voltage platform is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306743.4A CN110323399A (en) | 2019-04-17 | 2019-04-17 | A kind of module internal battery core arragement construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306743.4A CN110323399A (en) | 2019-04-17 | 2019-04-17 | A kind of module internal battery core arragement construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110323399A true CN110323399A (en) | 2019-10-11 |
Family
ID=68113314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910306743.4A Pending CN110323399A (en) | 2019-04-17 | 2019-04-17 | A kind of module internal battery core arragement construction |
Country Status (1)
| Country | Link |
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| CN (1) | CN110323399A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170005378A1 (en) * | 2015-06-30 | 2017-01-05 | Faraday&Future Inc. | Battery pack for vehicle energy-storage systems |
| CN107359387A (en) * | 2016-05-09 | 2017-11-17 | 哈尔滨智明科技有限公司 | A kind of power battery pack with high power characteristic and high capacity characteristics |
-
2019
- 2019-04-17 CN CN201910306743.4A patent/CN110323399A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170005378A1 (en) * | 2015-06-30 | 2017-01-05 | Faraday&Future Inc. | Battery pack for vehicle energy-storage systems |
| CN107359387A (en) * | 2016-05-09 | 2017-11-17 | 哈尔滨智明科技有限公司 | A kind of power battery pack with high power characteristic and high capacity characteristics |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191011 |