CN106848121A - A kind of lithium ion battery - Google Patents
A kind of lithium ion battery Download PDFInfo
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- CN106848121A CN106848121A CN201710101360.4A CN201710101360A CN106848121A CN 106848121 A CN106848121 A CN 106848121A CN 201710101360 A CN201710101360 A CN 201710101360A CN 106848121 A CN106848121 A CN 106848121A
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- lithium ion
- ion battery
- lithium
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6562—Gases with free flow by convection only
-
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a kind of lithium ion battery, including shell, and the multigroup lithium ionic cell unit between shell is placed on, multigroup lithium ionic cell unit placement stacked on top of one another；Every group of lithium ionic cell unit includes multiple battery cells, and shell includes left cap and right cap, and left cap and right cap are separately fixed at the both sides of lithium cells, realize the fixation of lithium cells；Left cap is identical with the structure of right cap, forms the frame-type structure of upper and lower opening；Left cap includes upper cover plate, lower cover and arc with right cap, and upper cover plate connection arc, arc connects lower cover, and upper cover plate, arc and lower cover are integrally formed.Lithium ion battery of the present invention, left cap is identical with the structure of right cap, forms the frame-type structure of upper and lower opening；In the present invention, the setting of frame-type structure, can bring larger plenum area, effectively expand heat dissipation region, and simple structure, and maintenance cost is low, easy for installation.
Description
Technical field
The present invention relates to novel battery technical field, more particularly to a kind of lithium ion battery.
Background technology
In recent years, the development of new energy is noticeable, particularly the high speed development of lithium ion battery, as new energy industry
In focus of concern.Therefore, the improvement lifting of the security of lithium ion battery and cycle life, is directly connected to lithium ion
Whether battery being capable of large-scale promotion application, it appears more and more important, more and more urgent.
In the continuing to develop of lithium ion battery technology, there are some technical barriers, for example, lithium ion battery discharge and recharge is followed
During ring there is irreversible consumption in electrolyte, because inside battery lacks electrolyte, cause inside battery to produce gas bulging, follow
Ring capacity is dived, and even results in the safety problems such as blast on fire.Special instruction, the use problem of lithium-ion battery module has
There is a certain limit, temperature is too low and temperature is too high or non-uniform temperature can all influence life-span and the charge-discharge performance of battery bag, mixes
Closing during power vehicle is travelled can cause the high rate charge-discharge of lithium ion battery bag discontinuity in different situations, big times
The discharge and recharge of rate can produce very big heat, and if substantial amounts of heat effectively dissipation to if outside, can not can cause battery
When bag temperature in use increases to over use temperature upper limit, it will influence its service life and reduce efficiency for charge-discharge.Such as China
Patent CN202651310U discloses a kind of high-power lithium ion battery, including positive pole and negative pole, is also dissipated including U-shaped metal
Hot jacket, the bottom surface of heat dissipation metal set is planar structure, and is provided with threaded connection hole, have in heat dissipation metal set with
The plastic casing that its casting is integrated, the top of the plastic casing is provided with described positive pole and negative pole, plastic casing
Inside is filled with electrolyte.The technical scheme carries out the dissipation of heat by U-shaped heat dissipation metal set, is that deficiency ensures that it dissipates
Heat demand, also it opens up louvre on the wall of side, and using air radiating, and the setting of louvre, aperture is smaller, for big
Power lithium ion cells bag, is much to be not sufficient to ensure that heat dissipation balancing.
Such as Chinese patent 02256897.2 discloses one kind and can provide high-power soft packaging power lithium-ion battery again,
This battery, by constituting in parallel or series, makes its power effectively increase by the lithium ion battery of several flexible packages, is
Heat dissipation problem during its static or working condition is solved, it concentrates the heat radiation function for employing metal tube, enables natural wind suitable
Profit passes through the metal tube between each battery cell, so as to efficiently promptly reduce its temperature.Technical scheme passes through metal tube
The dissipation of heat is carried out, is also not enough its radiating requirements of guarantee.
The content of the invention
To overcome lithium ion battery radiating efficiency present in prior art low, the complicated problem of packaging technology, the present invention
There is provided a kind of lithium ion battery.
The technical solution adopted by the present invention is：A kind of lithium ion battery, including shell, and be placed between the shell
Multigroup lithium ionic cell unit, multigroup lithium ionic cell unit placement stacked on top of one another；Lithium ionic cell unit bag described in every group
Multiple battery cells are included, its innovative point is：The shell includes left cap and right cap, and the left cap and right cap are distinguished
The both sides of lithium cells are fixed on, the fixation of lithium cells is realized；The left cap is identical with the structure of right cap, is formed
The frame-type structure of upper and lower opening；The left cap includes upper cover plate, lower cover and arc, the upper lid with right cap
Plate connects arc, and arc connects lower cover, and the upper cover plate, arc and lower cover are integrally formed.
On this basis, the arc is the arc for being provided with cell body, and the cell body caves inward to form rest area,
The arc cell body both sides side forms fixed area respectively, is fixed on the side of lithium cells, realizes the list of lithium cells
Side is fixed.
On this basis, the left cap is oppositely arranged with two arcs of right cap, forms plenum area.
On this basis, the lithium ion battery also includes radiator structure, the radiator structure and the multiple battery list
It is radiated respectively between body；The radiator structure includes the first division board, the second division board and supporting construction；Described
One division board is arranged on the battery cell of lower section, and second division board is vertically installed on the first division board, the support
Structure is arranged on the second division board, and is contacted with the battery cell of top and be supported.
On this basis, the supporting construction is made up of expansion link, support bar and fix bar；The expansion link is vertically fixed
On support bar, the support bar is fixed in fix bar, and with fix bar in vertical state；The fix bar is isolated with second
Plate be arranged in parallel, and carries out fixation of fitting with the second division board.
On this basis, the lithium ion battery also includes the second radiator structure, and the radiator structure dissipates including several
Backing, surface contact between described several fin and battery cell.
On this basis, several described fin are evenly arranged in battery cell surface, the fin undulate
Structure, two-by-two the fin trough and crest be oppositely arranged, form big dead zone.
On this basis, the battery cell surface is provided with 2-4 fin.
On this basis, the battery cell surface is provided with 4 fin.
On this basis, the shell also includes gas-permeable nets, the gas-permeable nets be arranged on the bottom of shell, top and its
Remaining two sides；The gas-permeable nets are made up of the ventilative subnet of multiple, and the ventilative subnet includes two ventilation strips, and two described ventilative
Bar direction at an angle is set, and the span of angle is 20-60 degree.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) lithium ion battery of the present invention, left cap is identical with the structure of right cap, forms the frame-type structure of upper and lower opening；
In the present invention, the setting of frame-type structure, can bring larger plenum area, effectively expand heat dissipation region, and simple structure, dimension
Shield low cost, it is easy for installation.
(2) lithium ion battery of the present invention, left cap includes upper cover plate, lower cover and arc with right cap, upper
State in structure, first simplify the shell of lithium ion battery, in the present invention, lithium-ion electric is realized by left cap and right cap
The fixation in pond, can play a part of shockproof compression-resistant, also can guarantee that the radiating effect of lithium ion battery, achieve many things at one stroke.
(3) lithium ion battery of the present invention, also including radiator structure, above-mentioned radiator structure be used in lithium-ion battery monomer it
Between radiating, simple structure is easy to use, designs ingenious.Radiator structure can be real by the installation of the first division board or unloading
Now flexibly pick and place, using unfixed setting, can in the light of actual conditions, the difference in such as winter or summer, increasing adds deduct
The number of few radiator structure.
(4) lithium ion battery of the present invention, the supporting construction in radiator structure is made up of expansion link, support bar and fix bar,
The Main Function of above-mentioned supporting construction, is using special 26S Proteasome Structure and Function so that upper and lower adjacent lithium-ion battery monomer energy
It is enough to ensure that there is certain required space, improve rate of heat dispation.
(5) lithium ion battery of the present invention, lithium ion battery also includes the second radiator structure, mainly fin, above-mentioned to dissipate
The setting of fin structure, can be internally formed big radiating area in battery cell, after being absorbed heat enough based on fin, quick transmission
To air so that whole lithium ion battery rate of heat dispation greatly speeds up.Meanwhile, responded to and cooperate with each other across a great distance with ventilation for enclosures area of the invention,
Heat dissipation problem during its static or working condition is fully solved, the usage safety performance of lithium ion battery is greatly improved.
Brief description of the drawings
Fig. 1 is lithium ion battery overall structure diagram of the present invention；
Fig. 2 is casing of lithium ion battery structural representation of the present invention；
Fig. 3 is a kind of implementation method schematic diagram of lithium ion battery radiator structure of the present invention；
Fig. 4 is second implementation method schematic diagram of lithium ion battery radiator structure of the present invention；
Fig. 5 is the third implementation method schematic diagram of lithium ion battery radiator structure of the present invention；
Fig. 6 is the 4th kind of implementation method schematic diagram of lithium ion battery radiator structure of the present invention；
Fig. 7 is second radiator structure schematic diagram of lithium ion battery of the present invention；
Fig. 8 is lithium ion battery filter screen structure schematic diagram of the present invention；
Fig. 9 is battery cell stepped construction schematic diagram in lithium ion battery of the present invention.
Specific embodiment
Below in conjunction with drawings and Examples, the present invention will be described in further detail.It should be appreciated that described herein
Specific embodiment is only used to explain the present invention, is not intended to limit the present invention.
Fig. 1-Fig. 9 of the invention schematically discloses a kind of lithium ion battery.
The present invention discloses a kind of lithium ion battery, including shell, and it is placed on the lithium-ion electric between the shell
Pool unit 1, the lithium ionic cell unit 1 includes multiple battery cells 11, and the levels of multiple lithium-ion battery monomers 11 are stacked
Put；As an inventive point of the invention, as shown in Figure 1：The shell includes left cap 2 and right cap 3, the left cap 2
With the both sides that right cap 3 is separately fixed at lithium cells 1, the fixation of lithium cells 1 is realized；The left cap 2 and right side
The structure of lid 3 is identical, forms the frame-type structure of upper and lower opening；In the present invention, the setting of frame-type structure, can bring larger
Plenum area, effectively expand heat dissipation region, and simple structure, maintenance cost is low, easy for installation.The setting of plenum area can be with lithium
The air-cooled passage that ion battery 1 is carried itself is used cooperatively, the Stability Analysis of Structures of lithium ion battery 1, while simplifying whole lithium ion
The structure of battery.As described in Figure 1, specifically, in this implementation method of the invention, the left cap 2 includes with right cap 3
Upper cover plate 21, lower cover 23 and arc 22, the connection arc 22 of the upper cover plate 21, the connection lower cover 23 of arc 22,
The upper cover plate 21, arc 22 and lower cover 23 are integrally formed.In said structure, first by the shell of lithium ion battery 1
Simplify, in the present invention, the fixation of lithium ion battery 1 is realized by left cap 2 and right cap 3, shockproof compression-resistant can be played
Effect, also can guarantee that the radiating effect of lithium ion battery 1, achieve many things at one stroke.
As it is further preferred that in this implementation method of the invention, as shown in Figure 1, 2：The arc 22 is to set
The arc of cell body is equipped with, the cell body caves inward to form rest area 24, the side of 22 cell body of the arc two is formed respectively
Fixed area, is fixed on the side of lithium ionic cell unit 1, realizes that the one side of lithium cells 1 is fixed.Above-mentioned left cap 2 and the right side
Two arcs 22 of side cover 3 are oppositely arranged, and form plenum area.
In another embodiment of the present invention, the lithium ion battery 1 also includes radiator structure, the radiator structure 4
The multiple battery cell 11 (as shown in Figure 9) between any two is arranged on, adjacent upper and lower battery cell 11 is dissipated respectively
Heat；As shown in Fig. 3,4,5：In this implementation method of the invention, the radiator structure 4 include the first division board 41, second every
From plate 42 and supporting construction；First division board 41 is arranged on the battery cell 11 of lower section, and second division board 42 is erected
Directly be arranged on the first division board 41 on, the supporting construction be arranged on the second division board 42 on, and with the battery cell 11 of top
Contact is supported.Above-mentioned radiator structure 4 is used in the radiating between lithium-ion battery monomer 11, and simple structure is easy to use,
Design is ingenious.Radiator structure 4 can be realized flexibly picking and placeing by the installation of the first division board 41 or unloading, using unfixed
Set, can in the light of actual conditions, the difference in such as winter or summer increases or decreases the number of radiator structure 4.As entering one
Step is preferred, and above-mentioned radiator structure 4 may be mounted at the edge of upper and lower two neighboring monomer, can with both sides edge
Install, it is also possible to installed in side edge, do not limit herein.
As it is further preferred that in this implementation method of the invention, as shown in Fig. 3,4,5：The supporting construction by
Expansion link 43, support bar 44 and fix bar 45 are constituted；The expansion link 43 is vertically fixed on support bar 44, and with top lithium from
Sub- battery cell 11 is vertical, and the support bar 44 is fixed in fix bar 45, and with fix bar 45 in vertical state；The fixation
Bar 45 be arranged in parallel with the second division board 42, and carries out fixation of fitting with the second division board 42.In the present invention, the first division board
41 be arranged in parallel with lower section lithium-ion battery monomer 11, and carry out movable fixed or laminating fixation, enable mobile or clever
Peace loading, unloading living；The overhead surface of first division board 41 is vertically and fixedly provided with the second division board 42, the peace of second division board 42
Holding position is not limited, and can be installed according to actual conditions.Certainly, expansion link 43 in supporting construction, the and of support bar 44
The installation site of fix bar 45 is not necessarily to Seeking Truth plumbness, can be according to actual conditions at an angle.Above-mentioned support
The Main Function of structure, be using special 26S Proteasome Structure and Function so that upper and lower adjacent lithium-ion battery monomer 11 ensure that
With certain required space, rate of heat dispation is improved；The height of support can be preferred in 0.5-3cm, it is preferred that bearing height is
1.5-2cm, when bearing height selection is for preferred height, the Stability Analysis of Structures of lithium ion battery 1, excellent in heat dissipation effect.As further
Preferably, using the pole for being capable of the flexible height of itself regulation, the fix bar 45 can also be used can for the expansion link 43
The pole of the flexible height of itself regulation, is arranged such, and can be adjusted according to the height size for being adjusted, easy to use.
When above-mentioned supporting construction is selected：As shown in Figure 4：When certain bearing height is selected, such as 1cm is first carried out
It is initial fixed, select suitable position to be movably fixed on the first division board 41 second division board 42, then fix bar 45 is pasted
Conjunction is fixed on the second division board 42, is successively fixed support bar 44 and expansion link 43, and now support bar 44 is fixed on
At a certain position at the edge of square battery cell 11；Accurately fixed again, adjusted the position of the second division board 42, as shown in Figure 6：
For example move forward and backward in the horizontal direction so that expansion link 43 is contradicted in place, can now adjust required support
Height.On the other hand, when the height of regulation needed for above-mentioned shaping modes can not meet, when such as too low or too high, can be with
Using expansion link 43 (using the pole that itself can adjust flexible height) or fix bar 45, (using itself can adjust flexible height
The pole of degree) carry out the further regulation of height.Above-mentioned regulative mode is flexible and changeable, simple structure, and regulation altitude range is wide.
As it is further preferred that in this implementation method of the invention, as shown in Figure 7：Lithium ion battery 1 also includes the
Two radiator structures 5, second radiator structure 5 includes several fin 51, described several fin 51 and battery cell
Surface contact between 11.As shown in Figure 7：Described several described fin 51 are evenly arranged in the surface of battery cell 11, described
The undulate structure of fin 51, two-by-two the trough and crest of the fin 51 be oppositely arranged and contact with each other, institute two-by-two
State fin 51 and form big dead zone.The setting of the structure of above-mentioned fin 51, can be internally formed big dissipating in battery cell 11
Hot-zone, after being absorbed heat enough based on fin 51, quickly passes to air so that the whole rate of heat dispation of lithium ion battery 1 is big greatly
Hurry up.Meanwhile, responded to and cooperate with each other across a great distance with ventilation for enclosures area of the invention, it is fully solved heat dissipation problem during its static or working condition, lithium
The usage safety performance of ion battery is greatly improved.
Above-mentioned fin 51 includes metal level, has heat conduction silicone in the top coating of the metal level, is needed in metal level
The surface of the one side to be contacted with other fin is coated with phase-change material layers, in metal level need not be with other fin
The surface of the another side of contact is coated with graphite film layer；In the above-described embodiment, the gold for being coated with phase-change material layers
Category layer side is relative and contact is set, and material is subjected to phase transformation in fin, and metal level is contacted with metal level and plays good
Conductive force, when fin 51 is not heated phase transformation, metal level is not contacted with metal level, plays good insulating effect.As
It is further preferred that above-mentioned metal level can select to be nickel dam, layers of copper or aluminium lamination, it is not limited herein.It is of the invention this
In implementation method, the finishing coat of fin three meets the radiating requirements of lithium ion battery 1 in the present invention, reaches and more preferably dissipates faster
Thermal effect.As it is further preferred that in this implementation method of the invention, in order to by the radiating effect of fin 51 and ventilation
The size in area is balanced, and the surface of the battery cell 11 is provided with 2-4 fin；Preferably, the table of the battery cell 11
Face is provided with 4 fin.
As it is further preferred that in this implementation method of the invention, in order to avoid lithium ion battery 1 declines into dust
Or other debris, on the premise of plenum area is ensured, as shown in Figure 8：The shell also includes gas-permeable nets 6, and the gas-permeable nets 6 are pacified
Mounted in the bottom of shell, top and it is fitted without remaining two sides of left cap 2 or right cap 3；Specifically, as shown in Figure 8：
The gas-permeable nets 6 are made up of the ventilative subnet of multiple, specifically, in this implementation method of the invention, as shown in Figure 8：It is described
Gas subnet includes two ventilation strips (being respectively the first ventilation strip 61 and the second ventilation strip 62), and two ventilation strips are in certain angle
The direction of degree is set, and the span of angle is 20-60 degree.In the present invention, the simple structure of gas-permeable nets 6, as ventilative subnet row
When row are tight, what the available ventilation area of plenum area will not be excessive is lost, and ventilation effect remains unchanged can meet scattered
The demand of the thermal efficiency.Further, subnet of breathing freely includes two ventilation strips, and two ventilation strips direction at an angle is set,
The composition of ventilation strip, the drawbacks of which greatly improving single ventilation strip and arrange in one direction, such as ventilating duct air draft
It is excessively single, and wind direction has the characteristic of not fixed-direction mostly, weakens draught capacity.And in invention of the present invention, design
Two ventilation strips, direction setting at an angle can solve above mentioned problem, used as it is further preferred that two ventilative
The span of the angle of the angle of bar is 20-60 degree, can to the full extent ensure draught capacity.
Described above has shown and described the preferred embodiments of the present invention, as previously described, it should be understood that not office of the invention
Be limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and can be used for various other combinations, modification and
Environment, and can be changed by the technology or knowledge of above-mentioned teaching or association area in invention contemplated scope described herein
It is dynamic.And the change and change that those skilled in the art are carried out do not depart from the spirit and scope of the present invention, then all should be appended by the present invention
In scope of the claims.
Claims (10)
1. a kind of lithium ion battery, including shell, and be placed on the lithium ionic cell unit between the shell, the lithium from
Sub- battery unit (1) includes multiple battery cells (11), lithium ionic cell unit monomer (11) placement stacked on top of one another；Its feature exists
In：The shell includes left cap (2) and right cap (3), and the left cap (2) and right cap (3) are separately fixed at lithium ion
The both sides of battery unit (1), realize the fixation of lithium ionic cell unit (1)；The left cap (2) and the structure of right cap (3)
It is identical, form the frame-type structure of upper and lower opening；The left cap (2) includes upper cover plate (21), lower cover with right cap (3)
(23) and arc (22), the upper cover plate (21) connects arc (22), and arc (22) connects lower cover (23), described
Upper cover plate (21), arc and lower cover (23) are integrally formed.
2. lithium ion battery according to claim 1, it is characterised in that：The arc (22) is the arc for being provided with cell body
Shape plate, the cell body caves inward to form rest area (24), and the side of arc (22) cell body two forms fixed area respectively, Gu
The side of lithium ionic cell unit (1) is scheduled on, realizes that the one side of lithium ionic cell unit (1) is fixed.
3. lithium ion battery according to claim 1 and 2, it is characterised in that：The left cap (2) and right cap (3)
Two arcs (22) are oppositely arranged, and form plenum area.
4. lithium ion battery according to claim 1, it is characterised in that：The lithium ionic cell unit (1) also includes dissipating
Heat structure (4), radiates to it respectively between the radiator structure (4) and the multiple battery cell (11)；The radiating
Structure (4) includes the first division board (41), the second division board (42) and supporting construction；First division board (41) is arranged on down
On the battery cell (11) of side, second division board (42) is vertically installed on the first division board (41), the supporting construction
On the second division board (42), and contacted with the battery cell (11) of top and be supported.
5. lithium ion battery according to claim 4, it is characterised in that：The supporting construction is by expansion link (43), support
Bar (44) and fix bar (45) are constituted；The expansion link (43) is vertically fixed on support bar (44), and the support bar (44) is solid
It is scheduled in fix bar (45), and with fix bar (45) in vertical state；The fix bar (45) is parallel with the second division board (42)
Set, and fixation of fitting is carried out with the second division board (42).
6. lithium ion battery according to claim 5, it is characterised in that：The lithium ionic cell unit (1) also includes the
Two radiator structures (5), second radiator structure (5) includes several fin (51), described several fin (51) and
Surface contact between battery cell (11).
7. lithium ion battery according to claim 6, it is characterised in that：Several described fin (51) are evenly arranged in
Battery cell (11) surface, fin (51) the undulate structure, fin (51) trough and crest are homogeneous two-by-two
To setting and contact, form big dead zone between the fin (51) two-by-two.
8. the lithium ion battery according to claim 6 or 7, it is characterised in that：Battery cell (11) surface is provided with
2-4 fin (51).
9. lithium ion battery according to claim 6, it is characterised in that：Battery cell (11) surface is provided with 4
Fin (51).
10. lithium ion battery according to claim 1, it is characterised in that：The shell also includes gas-permeable nets (6), described
Gas-permeable nets (6) are installed in the bottom of shell, top and remaining two sides；The gas-permeable nets (6) are made up of the ventilative subnet of multiple,
The ventilative subnet includes two ventilation strips, and two ventilation strips direction at an angle is set, the span of angle
It is 20-60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710101360.4A CN106848121B (en) | 2017-02-24 | 2017-02-24 | A kind of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710101360.4A CN106848121B (en) | 2017-02-24 | 2017-02-24 | A kind of lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106848121A true CN106848121A (en) | 2017-06-13 |
| CN106848121B CN106848121B (en) | 2019-08-23 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202758933U (en) * | 2011-09-23 | 2013-02-27 | 深圳市嘉洋电池有限公司 | Combined type battery pack |
| CN204167420U (en) * | 2014-10-24 | 2015-02-18 | 北汽福田汽车股份有限公司 | A kind of lithium ion battery and lithium ion battery bag |
| CN105932190A (en) * | 2016-06-27 | 2016-09-07 | 广东志成冠军集团有限公司 | Vehicle-mounted lithium iron phosphate battery pack |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202758933U (en) * | 2011-09-23 | 2013-02-27 | 深圳市嘉洋电池有限公司 | Combined type battery pack |
| CN204167420U (en) * | 2014-10-24 | 2015-02-18 | 北汽福田汽车股份有限公司 | A kind of lithium ion battery and lithium ion battery bag |
| CN105932190A (en) * | 2016-06-27 | 2016-09-07 | 广东志成冠军集团有限公司 | Vehicle-mounted lithium iron phosphate battery pack |
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