CN106784459B - A kind of lithium ion battery box structure - Google Patents
A kind of lithium ion battery box structure Download PDFInfo
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- CN106784459B CN106784459B CN201611059962.XA CN201611059962A CN106784459B CN 106784459 B CN106784459 B CN 106784459B CN 201611059962 A CN201611059962 A CN 201611059962A CN 106784459 B CN106784459 B CN 106784459B
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- bamboo
- layer
- battery case
- lithium ion
- wood
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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
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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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
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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
Abstract
The invention discloses a kind of lithium ion battery box structures, including Battery case, the side wall of Battery case is assembled by buffer board to be formed, the bottom plate of Battery case is made of bamboo-wood plyboard, the top of Battery case is top cover made of high molecular material, buffer board is successively made of elastic rubber layer, metal plate and amberwood inside-out, and the bottom surface of bamboo-wood plyboard is one layer of waterproof layer of bonding, and buffer board, top cover and bamboo-wood plyboard are assembled integrally composition Battery case.The lithium ion battery box structure being fabricated using bamboo-wood plyboard of the invention, while mitigating battery case self weight, meet requirement of the battery case to material property and structural behaviour, it is durable, the corrosion resistance and sealing performance for improving battery case, save a large amount of manufacturing costs, keep the manufacture and use of battery case more environmentally friendly, new application approach is opened for bamboo lumber, enriches the purposes field of bamboo lumber.
Description
Technical field
The present invention relates to lithium ion battery case equipment field for electric vehicle, in particular to a kind of lithium ion battery case knot
Structure.
Background technique
The existing lithium ion battery case overwhelming majority used is made of metal cabinet, so that battery case has just enough intensity
And durability, since metal is vulnerable to electrochemical corrosion, Battery case gets rusty easily corrosion in the long-term use, easily leads to
The defects of battery pack in battery case suffers erosion and leaks electricity, and then cause safety accident.In addition, when the battery pack in battery case
Occur leakage electric leakage fortuitous event when, due to operator can not detail inner case, when watching and touching battery case, Yi Fa
Raw electric shock or scald accident, safety are to be improved.
China possesses bamboo timber resource very rich, and the existing bamboo wood overwhelming majority applies to car by way of laminate
In wagon-floor, Production Container and furniture construction bottom plate industry, bamboo wood is not used widely.Bamboo wood is processed at plate
Afterwards, have the characteristics that intensity is big, hardness is high, lighter in weight, corrosion-resistant, good airproof performance, long service life, if by metal
Battery case replaces with bamboo lumber, can not only mitigate the weight of battery case, moreover it is possible to effectively improve the corrosion-resistant of battery case
Property and sealing performance, can save a large amount of manufacturing costs, keep the manufacture and use of battery case more environmentally friendly.
Summary of the invention
Goal of the invention of the invention is: in view of the above problems, provide it is a kind of using bamboo-wood plyboard manufacture and
At lithium ion battery box structure, mitigate battery case self weight while, improve the corrosion resistance and sealing performance of battery case, save
About a large amount of manufacturing costs, keep the manufacture and use of battery case more environmentally friendly.
The technical solution adopted by the invention is as follows: a kind of lithium ion battery box structure, including Battery case, Battery case
Side wall is assembled by buffer board and is formed, and the bottom plate of Battery case is made of bamboo-wood plyboard, and the top of Battery case is macromolecule material
Top cover made of expecting, buffer board are successively made of elastic rubber layer, metal plate and amberwood inside-out, and bamboo and wood is multiple
The bottom surface of plywood is one layer of waterproof layer of bonding, and buffer board, top cover and bamboo-wood plyboard are assembled integrally composition Battery case.
Due to the setting of above structure, the setting of elastic rubber layer is prevented to protect the intracorporal battery pack of battery case
Battery pack collision is impaired, and the setting of amberwood can guarantee that buffer board has enough intensity and anti-pressure ability, makes
The Battery case of bamboo and wood can meet requirement, meanwhile, the excellent corrosion resistance and electricity that amberwood has
Insulating properties can resist the erosion of external most corrosive substances, make Battery case not and will receive the corrosion of electrochemistry, i.e.,
Make in the case where electric leakage, electric shock accidents, the security performance enhancing of Battery case, the setting of metal plate will not occur for operator
Act not only as the support plate of buffer board, moreover it is possible to improve buffer board leakproofness, when external amberwood or
When person's elastic rubber slab breakage generates gap, fine and close metal plate can prevent the further erosion of corrosive liquids, Jin Erti
The high leakproofness and corrosion resistance of buffer board.The buffer board that elastic rubber layer, metal plate and amberwood are constituted, no
Only intensity with higher, the structure of multilayer also have the function of heat-insulated, shock-absorbing, when buffer board is impacted, phenolic aldehyde tree
The fibre structure that rouge glued board has can disperse to absorb most energy, and dependent variable is smaller, has little influence on buffer board
The stability of structure.On the one hand the bamboo-wood plyboard of setting to battery pack damping, protects battery pack from damaged in collision, another party
When the bottom of Battery case is by the time of tide, bamboo-wood plyboard can play the role of waterproof LP blades, be better than existing made of metal in face
Battery case.
Further, in order to preferably play leakproofness, energy absorption performance and the durability of amberwood, phenolic aldehyde tree
Rouge glued board is successively made of phenolic resin impregnated paper, bamboo curtain splint layer and nonwoven layer from top to bottom, wherein phenolic resin dipping
Paper, bamboo curtain splint layer and nonwoven layer are integrally formed by heat pressing process, and the nonwoven layer of amberwood is viscous by bonding agent
It connects in metal plate, and the periphery of amberwood is fixedly connected on a metal plate by fastening screw.
In order to further increase the damping performance and sealing performance of bamboo-wood plyboard, bamboo-wood plyboard successively glues from top to bottom
Close layer of polyurethane and bamboo and wood composite layer, wherein the outer surface of bamboo and wood composite layer coats one layer of wood shavings plank, in bamboo and wood composite layer
Between formed by the thin bamboo strips used for weaving piece hot pressing that several layers are impregnated with phenolic resin glue.
In order to improve the durability and leakproofness of bamboo curtain splint, bamboo curtain splint layer is passed through by the thin bamboo strips used for weaving piece that several layers are impregnated with phenolic resin glue
Perforation weaved hot-pressing form, wherein thin bamboo strips used for weaving piece with a thickness of 0.5-1.5mm.
Preferably, the thin bamboo strips used for weaving piece perforated weaved hot-pressing that bamboo curtain splint layer is impregnated with phenolic resin glue by two layers forms, wherein
Thin bamboo strips used for weaving piece with a thickness of 0.8mm.
Preferably, the thin bamboo strips used for weaving piece hot pressing that the centre of bamboo and wood composite layer is impregnated with phenolic resin glue by four layers is formed, wherein
Thin bamboo strips used for weaving piece with a thickness of 0.6mm.
Further, the parameter of bamboo curtain splint heat pressing process of the invention needs especially selection, so that phenolic resin obtained is glued
The performances such as intensity, wearability, the elasticity of plate meet design requirement, and heat pressing process generally comprises a hot pressing and secondary hot pressing, and one
The pressure of secondary hot pressing is 1.4-1.55MPa, preferably 1.48MPa, hot pressing time 30-45s, and the pressure of secondary hot pressing is 2.2-
2.37MPa, temperature are 120-130 DEG C, preferably pressure 2.27MPa, 124 DEG C of temperature.
Preferably, waterproof layer is phenolic resin impregnated paper, and it is bonded on bamboo and wood composite layer by heat pressing process.
Preferably, layer of polyurethane is made of hard polyurethane foam, with a thickness of 2-8mm.
Preferably, the Q235 steel plate that metal plate is 0.8-1.2mm thickness forms.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are: use bamboo and wood of the invention is multiple
The lithium ion battery box structure that plywood is fabricated meets battery case to material property while mitigating battery case self weight
It is durable with the requirement of structural behaviour, the corrosion resistance and sealing performance of battery case are improved, a large amount of manufacturing costs are saved,
Keep the manufacture and use of battery case more environmentally friendly, opens new application approach for bamboo lumber, enrich the purposes of bamboo lumber
Field.
Detailed description of the invention
Fig. 1 is a kind of lithium ion battery box structure schematic diagram of the invention；
Fig. 2 is lithium ion battery case main view partial structure diagram of the invention；
Fig. 3 is amberwood structural schematic diagram of the invention；
Fig. 4 is bamboo-wood plyboard structural schematic diagram of the invention.
Marked in the figure: 1 is Battery case, 2 be battery pack, and 3 be buffer board, and 4 be elastic rubber layer, and 5 be metal plate, and 6 are
Amberwood, 601 be phenolic resin impregnated paper, and 602 be bamboo curtain splint layer, and 603 be nonwoven layer, and 7 be bamboo-wood plyboard,
701 be layer of polyurethane, and 702 be bamboo and wood composite layer, and 8 be waterproof layer, and 9 be thin bamboo strips used for weaving piece, and 10 be wood shavings plank.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figures 1 to 4, a kind of lithium ion battery box structure, including Battery case 1, the side wall of Battery case 1 is by delaying
The assembling of punching 3 is formed, and the bottom plate of Battery case 1 is made of bamboo-wood plyboard 7, and the top of Battery case 1 is high molecular material system
At top cover (being not drawn into figure), buffer board 3 is inside-out successively by elastic rubber layer 4, metal plate 5 and amberwood
6 are constituted, and the bottom surface of bamboo-wood plyboard 7 is one layer of waterproof layer 8 of bonding, and buffer board 3, top cover and bamboo-wood plyboard 7 are assembled integrally
Constitute Battery case 1.
As depicted in figs. 1 and 2, in the present embodiment, the setting of elastic rubber layer 4 is to protect in Battery case 1
Battery pack 2 prevents the collision of battery pack 2 impaired, and it is enough strong that the setting of amberwood 6 can guarantee that buffer board 3 has
Degree and anti-pressure ability, enable the Battery case 1 of bamboo and wood to meet requirement, meanwhile, amberwood 6 has excellent
Different corrosion resistance and electrical insulating property can resist the erosion of external most corrosive substances, make Battery case 1 will not be by
To the corrosion of electrochemistry, even if electric shock accidents, the safety of Battery case 1 will not occur for operator in the case where electric leakage
It can enhance, the setting of metal plate 5 acts not only as the support plate of buffer board 3, moreover it is possible to the leakproofness for improving buffer board 3, when outer
When the amberwood 6 in portion or 4 breakage of elastic rubber layer generate gap, fine and close metal plate 5 can prevent corrosivity
The further erosion of liquid, and then improve the leakproofness and corrosion resistance of buffer board 3.Elastic rubber layer 4, metal plate 5 and phenol
The buffer board 3 that urea formaldehyde glued board 6 is constituted, not only intensity with higher, the structure of multilayer also have heat-insulated, shock-absorbing work
With, when buffer board 3 is impacted, the fibre structure that amberwood 6 has can disperse to absorb most energy,
Its dependent variable is smaller, has little influence on the stability of 3 structure of buffer board.7 one side of bamboo-wood plyboard of setting subtracts battery pack 2
Shake protects battery pack 2 from damaged in collision, and on the other hand when the bottom of Battery case 1 is by the time of tide, bamboo-wood plyboard 7 can be risen
To the effect of waterproof LP blades, it is better than existing made of metal Battery case.
As an implementation, in order to preferably play the leakproofness of amberwood 6, energy absorption performance and resistance to
With property, amberwood 6 is from top to bottom successively by 603 structure of phenolic resin impregnated paper 601, bamboo curtain splint layer 602 and nonwoven layer
At, as shown in figure 3, phenolic resin impregnated paper 601, bamboo curtain splint layer 602 and nonwoven layer 603 are integrally formed by heat pressing process, phenol
The nonwoven layer 603 of urea formaldehyde glued board 6 is bonded in metal plate 5 by bonding agent, and the periphery of amberwood 6 passes through
Fastening screw is fixedly connected on metal plate 5.
Among the above, top cover preferably uses ABS material or PC material to be made, elastic rubber layer 4 can for high elastic rubber,
Thermoplastic elastomer etc., for save the cost, elastic rubber layer 4 is made of waste tire rubber, and waste tire rubber has good
Elastic, electrical insulating property and stability well are highly suitable as the buffer layer of battery pack；Metal plate 5 can for steel plate, aluminium sheet or
Person's magnalium plate etc. uses the Q235 stainless steel plate of 0.8-1.2mm, preferably to reduce manufacturing cost.
In order to improve the durability and leakproofness of bamboo curtain splint, bamboo curtain splint layer 602 is impregnated with the thin bamboo strips used for weaving of phenolic resin glue by several layers
9 perforated weaved hot-pressing of piece forms, wherein thin bamboo strips used for weaving piece 9 with a thickness of 0.5-1.5mm, preferably 1.2mm.
Furthermore, the heat pressing process of bamboo curtain splint layer 602 uses prior art, i.e., soaks the woven thin bamboo strips used for weaving piece of drying
After stain phenolic resin glue is dried again, after assembly, precompressed, hot pressing, cut out to obtain the final product, wherein in precompressed, the pressure of precompressed
(hot pressing) is 1.4-1.55MPa, preferably 1.48MPa, hot pressing time 30-45s, and the pressure of secondary hot pressing is 2.2-
2.37MPa, temperature are 120-130 DEG C, preferably pressure 2.27MPa, 124 DEG C of temperature.The bamboo curtain splint as made from the technological parameter
The density of layer is greater than 1.1G/cm3, moisture content is less than 10%, and for water absorption rate less than 10%, static bending strength is greater than 30N/mm2, quiet song bullet
Property be not less than 500N/mm2, there is excellent comprehensive performance, can satisfy Battery case to the intensity of amberwood, resistance to
The requirement of the performances such as mill property, elasticity, overcomes existing amberwood lower defect of intensity due to thickness is thin, improves
The adaptability of amberwood.
It is preferably carried out mode as one kind, bamboo curtain splint layer 602 is impregnated with 9 perforated of thin bamboo strips used for weaving piece of phenolic resin glue by two layers
Weaved hot-pressing forms, wherein thin bamboo strips used for weaving piece 9 with a thickness of 0.8mm, as shown in Figure 3.
As an implementation, in order to further increase the damping performance and sealing performance of bamboo-wood plyboard 7, bamboo and wood is multiple
Plywood 7 successively bonds layer of polyurethane 701 and bamboo and wood composite layer 702 from top to bottom, as shown in figure 4, the appearance of bamboo and wood composite layer 702
Bread covers one layer of wood shavings plank 10, and the centre of bamboo and wood composite layer 702 is impregnated with 9 hot pressing of thin bamboo strips used for weaving piece of phenolic resin glue by several layers
It is formed, correspondingly, the centre of bamboo and wood composite layer 702 is also to be made by above-mentioned heat pressing process, to guarantee that bamboo and wood composite layer 702 has
There is comprehensive performance well.
It is preferably carried out mode as one kind, the centre of bamboo and wood composite layer 702 is impregnated with the bamboo of phenolic resin glue by four layers
9 hot pressing of thin bamboo strip is formed, wherein thin bamboo strips used for weaving piece 9 with a thickness of 0.6mm.
It is preferably carried out mode as one kind, waterproof layer 8 is phenolic resin impregnated paper, and is bonded in bamboo by heat pressing process
On the wooden composite layer 702.
It is preferably carried out mode as one kind, layer of polyurethane 701 is made of hard polyurethane foam, and thickness can be 2-8mm, most
It is well 6.5mm.
After tested, for the Battery case 1 made of buffer board 3 when by enormous impact force, what is be firstly broken is buffering
Coupling part between plate 3, and significant change does not occur for buffer board 3 itself, furthermore, by enormous impact force
And the coupling part between buffer board 3, when not being destroyed, amberwood 6 and metal plate 5 absorb big energy and with vibration
Dynamic form releases energy, and after 4 snubber of elastic rubber layer, the impact that battery pack 2 is subject to is greatly reduced for the vibration of generation,
Battery pack 2 receives good protection, and compared with metal protection board, anticollision coefficient almost maintains an equal level, in terms of thermal insulation, phenol
Urea formaldehyde glued board 6 can scorch that 30min is non-ignitable in 300 DEG C or so of temperature, the temperature of elastic rubber layer 4 rise it is unobvious,
The local temperature that amberwood 6 is not scorched rises 5-50 DEG C, and metal protection board is processed in 300 DEG C or so of temperature
Roasting 30min is non-ignitable, and the inside and outside wall temperature difference of protection board is little, reaches 350 DEG C or more, and for battery pack, battery core reaches
200 DEG C or more, then will appear rupture, exothermic phenomenon of largely discharging, or even explode, therefore, buffer board 3 of the invention every
Hot property is prominent.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of lithium ion battery box structure, including Battery case, which is characterized in that the side wall of Battery case is assembled by buffer board
It is formed, the bottom plate of Battery case is made of bamboo-wood plyboard, and the top of Battery case is top cover made of high molecular material, buffering
Plate is successively made of elastic rubber layer, metal plate and amberwood inside-out, and the bottom surface of bamboo-wood plyboard is bonding
One layer of waterproof layer, buffer board, top cover and bamboo-wood plyboard are assembled integrally composition Battery case, amberwood on to
Under be successively made of phenolic resin impregnated paper, bamboo curtain splint layer and nonwoven layer, wherein phenolic resin impregnated paper, bamboo curtain splint layer and nonwoven
Layer of cloth is integrally formed by heat pressing process, and the nonwoven layer of amberwood is bonded in metal plate, and phenol by bonding agent
The periphery of urea formaldehyde glued board is fixedly connected on a metal plate by fastening screw, and successively bonding is poly- from top to bottom for bamboo-wood plyboard
Urethane layer and bamboo and wood composite layer, wherein the outer surface of bamboo and wood composite layer coats one layer of wood shavings plank, the centre of bamboo and wood composite layer by
The thin bamboo strips used for weaving piece hot pressing that several layers are impregnated with phenolic resin glue is formed.
2. lithium ion battery box structure as described in claim 1, which is characterized in that bamboo curtain splint layer is impregnated with phenolic aldehyde tree by several layers
The thin bamboo strips used for weaving piece perforated weaved hot-pressing of rouge glue forms, wherein thin bamboo strips used for weaving piece with a thickness of 0.5-1.5mm.
3. lithium ion battery box structure as claimed in claim 2, which is characterized in that bamboo curtain splint layer is impregnated with phenolic resin by two layers
The thin bamboo strips used for weaving piece perforated weaved hot-pressing of glue forms, wherein thin bamboo strips used for weaving piece with a thickness of 0.8mm.
4. lithium ion battery box structure as described in claim 1, which is characterized in that the centre of bamboo and wood composite layer is impregnated by four layers
There is the thin bamboo strips used for weaving piece hot pressing of phenolic resin glue to be formed, wherein thin bamboo strips used for weaving piece with a thickness of 0.6mm.
5. lithium ion battery box structure as described in claim 1, which is characterized in that heat pressing process includes a hot pressing and secondary
Hot pressing, the pressure of a hot pressing are 1.4-1.55MPa, and hot pressing time 30-45s, the pressure of secondary hot pressing is 2.2-
2.37MPa, temperature are 120-130 DEG C.
6. lithium ion battery box structure as described in claim 1, which is characterized in that waterproof layer is phenolic resin impregnated paper, and
It is bonded on bamboo and wood composite layer by heat pressing process.
7. lithium ion battery box structure as described in claim 1, which is characterized in that layer of polyurethane is made of hard polyurethane foam,
With a thickness of 2-8mm.
8. lithium ion battery box structure as described in claim 1, which is characterized in that metal plate is the Q235 of 0.8-1.2mm thickness
Steel plate composition.
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| WO2022006609A3 (en) * | 2020-07-06 | 2022-04-14 | Fill Gesellschaft M.B.H. | Accumulator |
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|---|---|---|---|---|
| CN107196253A (en) * | 2017-06-21 | 2017-09-22 | 滁州市朝友精密制造有限公司 | A kind of electrical equipment uses junction box |
| CN110473648B (en) * | 2018-07-04 | 2021-03-02 | 中国工程物理研究院核物理与化学研究所 | Modularized radiation similar-potential syngen battery |
| CN116826324A (en) * | 2023-08-23 | 2023-09-29 | 宁德时代新能源科技股份有限公司 | Cushion, battery cell, battery and electricity utilization device |
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| JP4020544B2 (en) * | 1999-09-20 | 2007-12-12 | 三洋電機株式会社 | Non-aqueous electrolyte secondary battery |
| CN101157226A (en) * | 2007-11-15 | 2008-04-09 | 胡新华 | Bamboo composite board made of thin bamboo splits piece for container floor |
| CN201745065U (en) * | 2010-02-09 | 2011-02-16 | 张世雄 | Double faced lateral pressure longitudinal bamboo veneer plywood |
| CN102555008A (en) * | 2010-12-15 | 2012-07-11 | 东莞市兴林木业有限公司 | Wood and bamboo composite shaving board and process |
| CN102785443B (en) * | 2012-07-19 | 2015-04-08 | 佛山市顺德区北航先进技术产业基地有限公司 | Buffer laminate compounded layer structure composite material bumper and its preparation method |
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| WO2022006609A3 (en) * | 2020-07-06 | 2022-04-14 | Fill Gesellschaft M.B.H. | Accumulator |
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