CN206225492U - A kind of controllable power lithium-ion battery device of high/low temperature - Google Patents
A kind of controllable power lithium-ion battery device of high/low temperature Download PDFInfo
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- CN206225492U CN206225492U CN201621316362.2U CN201621316362U CN206225492U CN 206225492 U CN206225492 U CN 206225492U CN 201621316362 U CN201621316362 U CN 201621316362U CN 206225492 U CN206225492 U CN 206225492U
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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 utility model provides a kind of controllable power lithium-ion battery device of high/low temperature, including battery case, battery is placed with battery case, battery refrigerant storage chamber is formed between battery case inwall and the battery outer wall, in battery refrigerant storage chamber, heater is provided with battery ambient, an evaporative heat loss pipeline is provided with the outside of battery case, the import and export of evaporative heat loss pipeline connect to form a battery refrigerant circulation loop with battery refrigerant storage chamber, a temperature detect switch (TDS) is additionally provided with battery case, temperature detect switch (TDS) is connected by connecting wire with heater and battery；The vent valve connected with battery refrigerant storage chamber is additionally provided with battery case.Cell apparatus of the present utility model solve the problems, such as that the battery under low temperature environment and hot environment is unable to normal safe work；The utility model is carried out to the heating of battery and temperature-fall period in battery inside simultaneously, is not required in the outer additional power device of battery case, and simple for structure, convenient operation, safety coefficient are higher.
Description
Technical field
The utility model belongs to lithium ion battery technology application field, is related to one kind high efficiency under low temperature and hot conditions
The power lithium-ion battery device of application.
Background technology
At present, in the application technology industry of secondary lithium battery, the composition of lithium ion battery battery group be typically according to
The technology of battery applications needs, and according to the capacity and voltage indexes of single battery core, battery core is connected and in parallel, to reach
The capacity and output voltage index of the lithium ion battery battery group of needs.
It is generally used for the battery pack and its battery case of the lithium ion battery of outdoor equipment, with for satisfaction is carried and is installed
It is required that and set part and annex outside, also with a certain degree of rainproof function.In numerous environmental key-elements, temperature is to battery
The influence of performance is maximum.Due to the battery core temperature feature of lithium ion battery, the nominal lithium ion battery of usual battery production manufacturer
, at -10 DEG C~55 DEG C, discharge environment temperature range is at -20 DEG C~60 DEG C for charging ambient temperature scope.Actual lithium ion battery
The optimum working temperature scope of product is at 20 DEG C~40 DEG C.Lithium ion battery is to 0~40 DEG C of this interval temperature and unwise
Sense, more than this temperature range, life-span and capacity will give a discount.However, China region is wide, north and south latitude span is big, especially
Its in the winter time the north and south region temperature difference it is big, existing lithium ion battery product is deposited under the use condition of such region and the temperature difference
In the thermal management technology shortcoming of following battery：
1st, at low ambient conditions
In the low temperature environment less than 0 DEG C, because the electrolyte used by lithium ion battery is used as organic liquid, such as oil
Fat, can at low temperature become viscous and even condense.Now, conductive lithium salts activity inside is restricted significantly, such battery
Charge efficiency is very low, so as to lithium ion battery can be caused to charge at low temperature slowly, is also not fully filled.
In the low temperature environment less than 0 DEG C, lithium-ion electric tank discharge, because negative terminal surface SEI films were transmitted to lithium ion
The drag effect of journey, than being significantly deteriorated at normal temperatures, discharge capacity of the cell has very big decay to the discharge performance of battery.
Lithium ion battery can not charge in environment of the environment temperature less than 0 DEG C to battery in theory.In 0 DEG C of low ambient temperature
When charge, polymer Li-ion battery group internal pressure can be increased, and may open battery core safety valve.In order to effectively charge, environment
Temperature range should be between 5~30 DEG C.
In the usual humidity in normal pressure area and area, when environment temperature drops to dew-point temperature, battery condensation can cause short
Road.When being used in the environment of lithium ion battery is brought into less than 0 DEG C under warm environment, will be easy in its battery
Dew condensation phenomenon is formed on the circuit board in portion, condensation can cause battery short circuit.When dew condensation phenomenon is more serious, then just very possible
The circuit board short circuit of lithium ion battery is caused, so as to influence the use of consumer, product can be caused to smolder, catch fire what is more, greatly
Current discharge etc. endangers.
Used in low temperature environment for a long time, or in -40 DEG C of ultra-low temperature surroundings, lithium ion battery can be made by " freezing "
Into permanent damage.
Due to being influenceed by the natural environment temperature of region and weather so that the temperature in use of lithium ion battery is subject to very big
Limitation.When temperature temperature when using in the wild is less than 5 DEG C, the cell discharge efficiency of lithium ion battery will decline, temperature
Again it is low will decline it is more.
In actual application, Li-ion batteries piles connect in -10 DEG C of discharging efficiencies close to 70% in -15 DEG C of discharging efficiencies
Nearly 50%, in -20 DEG C of discharging efficiencies close to 30%.In recent years be disclosed about the electronic of north of china in winter application lithium ion battery
In automobile report, northern big city occur can not go up road in -20 DEG C of temperature because lithium ion battery discharge rate is low, to lithium ion battery
The popularization of technology is extremely adversely affected.
It is widely different in same season outdoor temperature in China north and south region, 2 months of December to next year equally in the winter time
Part, in China's outdoor temperature on average of major part northern area below 0 DEG C, according to the lithium ion battery of usual Technical form at family
The discharging efficiency of battery is very low under outer temperature, or even can not use substantially, and this just seriously hinders lithium ion battery technology product
Technique Popularizing application.
2nd, under high ambient conditions
In the low temperature environment higher than 40 DEG C, according to the Li-ion batteries piles of usual Technical form, the charging interval is 6~8
Hour, the charging interval is long, and the charge efficiency of lithium ion battery is affected, and is unfavorable for that user uses the positive of lithium ion battery
Property.
Charging interval is long, and main cause is small charging current, will use large current charge when charging fast so that battery pack
Temperature can be raised, and common battery pack and battery case heat dispersion in itself are poor, be unfavorable for Li-ion batteries piles safe charging.
Hot environment has a negative impact to SEI films.It is isolation both positive and negative polarity that SEI films are acted in lithium ion battery, is passed through
Lithium ion, prevents electronics from passing through.When battery temperature is raised, there is exothermic decomposition in SEI films.When more than 50 DEG C, battery is put
Capacitance, discharge energy declines,
Hot environment is charged, and battery temperature can be caused to raise in large current charge, the lithium ion battery in high temperature
Charge, because issuable gas has the risk for making cell expansion explode when charging.
At 60 DEG C, the electricity supplement that lithium ion battery constant-current charge is obtained is gradually decreased, and what constant-voltage phase was obtained
Electricity is dramatically increased.This is caused due to battery polarization phenomenon.
Capacity attenuation is very fast at 60 DEG C.Capacity of lithium ion battery decline has the influence of battery polarization, i.e. lithium ion diffusion
Speed does not catch up with the transfer velocity of electronics so that the lithium ion that anode is accommodated is fewer and feweri.In height of the temperature higher than 60 DEG C
Under temperature, this polarization process largely aggravates, and this is the basic reason for causing capacity of lithium ion battery to be decayed.
(1) in the lithium ion battery structure of prior art, most lithium batteries make battery cartridge using plastics and metal, use
In internal battery core and protection board is accommodated, the weight of battery and the fixed placement of battery, and circuit connection are supported, it is impossible in the north
The low temperature season in area is to battery thermal, it is impossible to support battery normal work at low ambient temperatures；
(2) in the lithium ion battery structure of prior art, most lithium battery boxes do not have heat abstractor, it is impossible to actively dissipate
Heat, suppresses the rising of battery temperature.In high temperature environments, temperature can continue to raise when battery operated so that the charging effect of battery
Rate reduction.
(3) in the lithium ion battery structure of prior art, lithium battery box does not have extinguishing device.Charged in battery and overheated
When, and when discharge of electricity is used, battery temperature raises the battery catches fire for causing, it is impossible to carries out fire-fighting fire extinguishing automatically, there is harm people
The risk of body safety.
(4) when battery is carried over into the relatively low outdoor environment of low temperature by temperature indoor environment higher, due to battery case
Temperature is higher than external elements within a certain period of time for body and battery core temperature, and the inside and outside wall of battery case occur larger temperature difference,
There is dew condensation phenomenon in the interior side sometimes resulted in temperature battery box wall higher.Condensation occurs in inside battery, dewdrop
Short circuit can be caused in battery core or circuit board, serious causes battery short circuit heating on fire, endangers personal security.
One prior art, utility model patent CN 201717346U, title《A kind of dynamic lithium battery temperature control dress
Put》, the temperature of lithium battery is controlled using temperature control equipment, which employs circulation pump, with the hot water or cold water of high and low temperature
As heating or cooling source, circulated with aqueous medium in battery box wall and heated up to lithium battery or lower the temperature.Its exist have the disadvantage, one its
The hot water as thermal source and the cold water as low-temperature receiver must be again prepared outside cell body, temperature conditioning unit control is separately set again
The working condition of circulation pump processed；Two its be used in dress of the battery cartridge of outside batteries as heating and the cooling of battery in box
Put, the method with heating or lowering the temperature to battery case heats up or lowers the temperature to the battery inside battery case；Three its batteries are placed on battery
Box the inside, in the outer radiator incorporated fan of battery case to radiate, device structure is complicated, and warming and cooling rate is slow, there is safety hidden
Suffer from.
Utility model content
In view of this, in the technology application industry of lithium-ion-power cell, it is controllable that the utility model provides a kind of high/low temperature
Power lithium-ion battery device, for battery provides suitable working temperature environment, meet the electricity under natural environment cryogenic conditions
Pond high-efficiency discharge, can in time maintain battery core in suitable temperature in discharge and recharge, protect the battery core of battery, enable battery just
Often use, increase the validity period of lithium ion battery；In high temperature environments, meet control battery core temperature in time, suppress battery temperature
Raise, maintain the suitable temperature of battery, solve problems of the prior art.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of controllable power lithium-ion battery device of high/low temperature, including battery case, are placed with battery, battery in battery case
Battery refrigerant storage chamber is formed between box inwall and the battery outer wall, in the battery refrigerant storage chamber, in the electricity
Heater is provided with around pond, the outside of top cover of the battery case is provided with an evaporative heat loss pipeline, the evaporative heat loss pipeline
Import and export connect to form a battery refrigerant circulation loop with the battery refrigerant storage chamber, are additionally provided with the battery case
One temperature detect switch (TDS), the temperature detect switch (TDS) is connected by connecting wire with the heater and battery；Also set on the battery case
There is the vent valve connected with the battery refrigerant storage chamber.
Further, the evaporative heat loss pipeline includes evaporator and radiator, wherein one end of the evaporator and institute
The connection of battery refrigerant storage chamber is stated, other end connection radiator, the other end of the radiator passes through catheter and the electricity
Pond refrigerant storage chamber connects to form battery refrigerant circulation loop.
Further, the battery refrigerant storage chamber is also connected with the inside battery space.
Further, the temperature detect switch (TDS) is arranged at the battery top, and the temperature by a temperature detect switch (TDS) fixed plate
Fixed plate liquid pass hole is offered on control switch fixing casing.
Further, the battery is included by several single battery cores through string or the lithium battery group for being formed in parallel, the lithium
Battery pack is externally provided with battery external packing, is provided with protection board between battery external packing and lithium battery group, the lithium battery group it is positive and negative
Electrode is connected by connecting wire with protection board, and the protection board passes through connecting wire and the charging socket being arranged on battery case
It is connected with electric discharge socket, the protection board is also connected by connecting wire with temperature detect switch (TDS).
Further, the battery external packing is provided with battery external packing liquid pass hole, and the battery refrigerant storage chamber is also
Connected with the inside battery space by the battery external packing liquid pass hole.
Further, the battery case is spliced by the battery box and battery case lid of upper end open, the battery case
It is made of thermal insulating electric insulation material.
Further, the battery refrigerant storage chamber is used for filling battery refrigerant, for absorbing battery battery core work
When heating, the battery refrigerant be liquid.
It is further preferred that the battery refrigerant is freon.
More further, the heater is heater, and the heater is arranged at the battery bottom, the heating
The connecting wire of device by be arranged at the fixed plate cable-through hole in the temperature detect switch (TDS) fixed plate directly with the temperature detect switch (TDS) phase
Connection.
Relative to prior art, the controllable power lithium-ion battery device of high/low temperature described in the utility model has following
Advantage：
The thermal management technology of the lithium ion battery that the utility model is used, using the heating technique under low temperature, solves existing
There is the problem of the normal safe work that can not support battery under low temperature environment and hot environment in technology；Adopted in the present apparatus simultaneously
Battery refrigerant, there is fire-extinguishing function concurrently, and solving in battery structure in the prior art does not have extinguishing device, it is impossible to carry out automatically
Fire-fighting fire extinguishing, the problem of harm personal safety；
In addition, the utility model is carried out to the heating of battery and temperature-fall period in battery inside, is not required in electricity
The cycle power device of the outer additional cycles battery refrigerant of pond box, simple for structure, convenient operation, safety coefficient are higher.
Brief description of the drawings
The accompanying drawing for constituting a part of the present utility model is used for providing being further understood to of the present utility model, and this practicality is new
The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is the battery case top plan of structure described in the utility model example；
Fig. 2 is integrally-built sectional front view described in the utility model example.
Description of reference numerals：
1- battery cases；2- batteries；3- battery refrigerants；4- radiators；5- evaporators；6- catheters；7- heaters；8- temperature
Control switch；11- battery box；12- battery case lids；13- charging sockets；14- electric discharge sockets；15- vent valves；21- battery cores；22-
Connecting wire；23- protection boards；24- battery external packings；25- battery external packing liquid pass holes；26- temperature detect switch (TDS) fixed plates；27- consolidates
Fixed board liquid pass hole；28- fixed plate cable-through holes.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that the device or element of meaning with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that
It is to limitation of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " is meant that two or more.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, can be by concrete condition understanding
State concrete meaning of the term in the utility model.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment 1
A kind of controllable power lithium-ion battery device of high/low temperature, as illustrated in fig. 1 and 2, including battery case 1 (stands for rectangular
Body box), as the external structure of Li ion cells unit, protection fixing internal structure is capable of achieving, completely cut off exterior space, sealing
Inner space, and bear certain inside and outside draught head；Battery 2, the inwall of battery case 1 and the battery are placed with battery case 1
Battery refrigerant storage chamber is formed between outer wall, battery refrigerant 3 is contained in shape between the inwall of battery case 1 and the battery outer wall
Into in battery refrigerant storage chamber, battery 2 is soaked, battery refrigerant 3 is that (box is interior when temperature is higher than 40 DEG C, battery for liquid
Refrigerant 3 will evaporate gas heat absorption, for the battery absorbing and cooling temperature for heating up；Graphite can be added in battery refrigerant 3
Alkene so that its thermal conductivity is good, to absorb the heat produced when lithium cell core works, can prevent lithium battery from overheating, and be elected to be electricity
The liquid of pond refrigerant is non-ignitable without flash-point, and can do circuit extinguishing chemical, preferably freon)；
Heater is provided with around the battery 2 in the battery refrigerant storage chamber, the outside of the battery case 1 sets
There is an evaporative heat loss pipeline, the import and export of the evaporative heat loss pipeline connect to form an electricity with the battery refrigerant storage chamber
Pond refrigerant circulation loop, is additionally provided with a temperature detect switch (TDS) 8 in the battery case 1, the temperature detect switch (TDS) 8 by connecting wire 22 with
The heater and battery 2 are connected；The vent valve connected with the battery refrigerant storage chamber is additionally provided with the battery case 1
15, vent valve 15 is used for automatic side's gas decompression, protection device and ring when the internal gas pressure of battery box 1 is to certain threshold value
Border safety, anti-locking apparatus deformation.
Specifically, the evaporative heat loss pipeline includes evaporator 5 and radiator 4, radiator 4 is located at the top of battery box 1
Portion, is the good copper pipe of heat conduction, is conducted heat to outside tube wall for managing interior gas-liquid body heat content so that distributed outside battery box 1 from interior
The heat that portion absorbs, reduces the temperature inside battery box 1；Evaporator 5 is also the good copper pipe of heat conduction, and caliber is compared with radiator 4
Caliber it is thick；One end of wherein described evaporator 5 connects with the battery refrigerant storage chamber, other end connection radiator 4, uses
In the absorbed inside from battery box 1 and the battery refrigerant of guiding evaporation gas to radiator 4；Catheter 6 is located at battery
The inside of box body 1, is the good copper pipe of heat conduction, upper termination radiator 4, the lower end of catheter 6 and the battery refrigerant storage chamber
Connection forms battery refrigerant circulation loop, the battery refrigerant 3 condensed after being radiated for guiding heat radiation device 4, flows back to battery case
The inside of body 1；
The heater is heater, battery-powered, is a heating film, low in outdoor for a long time for lithium battery
When temperature is placed or used, battery heat temperature raising is given, protect battery battery core so that lithium ion battery has the regular picture under normal temperature
Rate, it is to avoid harmful effect and harm of the low temperature to battery；The heater is arranged at the bottom of battery case 1, and top is battery 2, institute
State the connecting wire of heater by be arranged at the fixed plate cable-through hole in the temperature detect switch (TDS) fixed plate directly with the temperature control
Switch is connected, and temperature detect switch (TDS) 8 is used to control heater 7, and heater 7 is started when temperature is less than 5 DEG C to battery heat temperature raising,
Stop heating when temperature is higher than 15 DEG C.
Be inside battery 2 according to the voltage and current design requirement nickel sheet of battery be welded into it is many by parallel and serial
Individual battery core 21 (i.e. lithium battery group), series connection and the external positive pole of battery core 21 in parallel and negative pole connecting wire are connected to battery 2
Battery core 21, protection board 23 of protection board 23, the parcel of battery external packing 24 and fixed inside etc.；The connecting wire mistake of protection board 23
Through the outside of battery external packing 24 connection temperature detect switch (TDS) 8, charging socket 13, electric discharge socket 14 etc..
In order to ensure cooling effect, the battery refrigerant storage chamber is also connected with the inside battery space, specifically,
The battery external packing is provided with battery external packing liquid pass hole, and the battery refrigerant storage chamber is also by the battery external packing
Liquid pass hole is connected with the inside battery space；Fixed plate liquid pass hole is also offered in the temperature detect switch (TDS) fixed plate.
Further, the battery is included by several single battery cores through string or the lithium battery group for being formed in parallel, the lithium
Battery pack is externally provided with battery external packing, is provided with protection board between battery external packing and lithium battery group, the lithium battery group it is positive and negative
Electrode is connected by connecting wire with protection board, and the protection board passes through connecting wire and the charging socket being arranged on battery case
It is connected with electric discharge socket, the protection board is also connected by connecting wire with temperature detect switch (TDS).
Preferably, the battery case is spliced by the battery box and battery case lid of upper end open, and the battery case is adopted
The material that is electrically insulated with thermal insulating is made；Battery refrigerant 3 is a kind of electrically insulating liquid, while being also a kind of extinguishing chemical, can be risen
To the effect for preventing battery catches fire harm.
The course of work of the present utility model is：
In outdoor, when lithium ion battery is at 5 DEG C of temperature and more low temperature environment, the temperature detect switch (TDS) 8 of battery starts, and connects
To the circuit of protection board 23, heater heating, heat passes to battery to logical heater 7 through battery refrigerant 3, battery temperature just by
Step is raised so that even if battery is under outdoor low temperature environment, also can normal work, the temperature control when the temperature of battery 2 is increased to 15
The automatic power supply for disconnecting heater 7 of switch 8, stops heating, and higher temperature is maintained by battery operated self-heating；When lithium from
When sub- battery is in the temperature environment higher than 40 DEG C, temperature when battery 2 works can be higher, and at this moment battery refrigerant 3 is volatilized
Gas, the gasification of battery refrigerant 3 absorbs heat and causes that the temperature of battery 2 no longer rises, the normal work of battery 2.The gas of battery refrigerant 3
The gas of change, by entering radiator 4 after evaporator 5, gas is in radiator 4 to the air dissipated heat outside battery box 1
Afterwards, the liquid of low temperature is returned in regelation in radiator 4, then is entered catheter 6 and flowed back to inside battery case 1, then is rejoined above-mentioned
Liquid evaporation to outside battery case radiate circulation.The re-liquefied process of the cycle gasification of this battery refrigerant 3, is not required to additional dynamic
Power and power set, when the heat that battery in battery case 1 is produced causes that temperature rising is close to battery refrigerant 3 in battery case
40 DEG C of boiling temperature when, the gasification aggravation of battery refrigerant 3, the pressure by the pipe diameter of evaporator 5 than the big formation of diameter of radiator 4
Power is poor, and the re-liquefied process automatic cycle that gasifies is carried out, it is not necessary to applied cyclic power and power set.Vent valve 15 is used for
When battery refrigerant gasifies and re-liquefied circulation is set up, the pressure of liquid gas is adjusted, with the boiling point of regulating cell refrigerant,
The boiling point of battery refrigerant 3 is controlled, is reached and is matched with the environment temperature outside battery case 1 with the temperature in battery case 1 so that box
Interior heat can be distributed in time.Vent valve also has prevents pressure in battery case 1 excessive, and pressure exceedes setting safety value just in box
Automatic deflation, vent valve 15 has the function of safety anti-explosive.
Battery refrigerant 3 is a kind of electrically insulating liquid, while being also a kind of extinguishing chemical, can play prevention battery catches fire harm
Effect.
The thermal management technology of the lithium ion battery that the utility model is used, using the heating technique under low temperature, solves existing
Having present in technology can not be in the low temperature season of northern area to battery thermal in problem 1, it is impossible to support battery in low temperature ring
The problem of the normal work under border.
Using heat abstractor and technology, problems of the prior art 2 are solved, battery cartridge does not radiate dress
Put, it is impossible to radiate, suppress the rising of battery temperature, in high temperature environments, temperature can continue to raise when battery operated so that battery
Charge efficiency reduction problem；The battery refrigerant of use, there is fire-extinguishing function concurrently, solves problems of the prior art 3
, there is no extinguishing device in battery structure, when battery charges and overheats, and when discharge of electricity is used, battery temperature is raised and caused
Battery catches fire, it is impossible to carry out fire-fighting fire extinguishing automatically, have harm personal safety risk problem；Liquid is placed using battery is fit
Body and the structure of sealing, solve problems of the prior art 4, when battery is entrained into the ring of low temperature by the environment of high temperature
During border, due to battery box inside and battery core temperature, temperature is higher than external elements within a certain period of time, sometimes results in electricity
Occurs the problem of dew condensation phenomenon inside pond, the presence of condensation can cause battery circuit short circuit thermal, and serious causes battery short circuit
It is on fire, endanger personal security.
Technical embodiment of the present utility model, compares prior art, has been better achieved when outdoor is low temperature or high temperature
During environment, the safety of SEI films is protected；Prevent battery high-temperature environment to charge, be also easy to produce the wind that gas makes cell expansion explode
Danger；Prevent battery at high temperature, polarization process largely aggravates, cause capacity of lithium ion battery to be decayed；The utility model
Technology cause lithium ion battery highly effective and safe work, extend battery-efficient rate validity period.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (9)
1. the controllable power lithium-ion battery device of a kind of high/low temperature, it is characterised in that：Including battery case, it is placed with battery case
Battery, forms battery refrigerant storage chamber between battery case inwall and the battery outer wall, heating is provided with the battery ambient
Device, is provided with an evaporative heat loss pipeline on the outside of the battery case, the import and export of the evaporative heat loss pipeline with the battery
Refrigerant storage chamber is connected to form a battery refrigerant circulation loop, and a temperature detect switch (TDS), the temperature are additionally provided with the battery case
Control switch is connected by connecting wire with the heater and battery；It is additionally provided with the battery case and the battery refrigerant
The vent valve of storage chamber connection.
2. the controllable power lithium-ion battery device of high/low temperature according to claim 1, it is characterised in that：The Evapotranspiration
Pipe line includes evaporator and radiator, wherein one end of the evaporator connects with the battery refrigerant storage chamber, it is another
End connection radiator, the other end of the radiator connects to form battery system by catheter with the battery refrigerant storage chamber
Refrigerant cycle loop.
3. the controllable power lithium-ion battery device of high/low temperature according to claim 1 and 2, it is characterised in that：The electricity
Pond refrigerant storage chamber also connects with the inside battery space.
4. the controllable power lithium-ion battery device of high/low temperature according to claim 1 and 2, it is characterised in that：The temperature
Control switch is arranged on the battery top, and the temperature detect switch (TDS) fixed plate by a temperature detect switch (TDS) fixed plate and offers fixation
Plate liquid pass hole.
5. the controllable power lithium-ion battery device of high/low temperature according to claim 3, it is characterised in that：The battery bag
Include by several single battery cores through string or the lithium battery group for being formed in parallel, the lithium battery group is externally provided with battery external packing, battery
Protection board is provided between external packing and lithium battery group, the positive and negative electrode of the lithium battery group is connected by connecting wire with protection board
Connect, the protection board is connected by connecting wire with the charging socket and electric discharge socket that are arranged on battery case, the protection board
Also it is connected with temperature detect switch (TDS) by connecting wire.
6. the controllable power lithium-ion battery device of high/low temperature according to claim 5, it is characterised in that：Outside the battery
Packaging is provided with battery external packing liquid pass hole, and the battery refrigerant storage chamber is also by the battery external packing liquid pass hole and institute
State the connection of inside battery space.
7. the controllable power lithium-ion battery device of high/low temperature according to claim 1 or 2 or 5 or 6, it is characterised in that：
The battery case is spliced by the battery box and battery case lid of upper end open, and the battery case is using thermal insulating electric insulation material
It is made.
8. the controllable power lithium-ion battery device of high/low temperature according to claim 1 or 2 or 5 or 6, it is characterised in that：
The battery refrigerant storage chamber is used for filling battery refrigerant, and the battery refrigerant is liquid.
9. the controllable power lithium-ion battery device of high/low temperature according to claim 4, it is characterised in that：The heating dress
Heater is set to, the heater is arranged at the battery bottom, and the connecting wire of the heater is by being arranged at the temperature
Fixed plate cable-through hole on control switch fixing casing is directly connected with the temperature detect switch (TDS).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621316362.2U CN206225492U (en) | 2016-12-02 | 2016-12-02 | A kind of controllable power lithium-ion battery device of high/low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621316362.2U CN206225492U (en) | 2016-12-02 | 2016-12-02 | A kind of controllable power lithium-ion battery device of high/low temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206225492U true CN206225492U (en) | 2017-06-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410302A (en) * | 2016-12-02 | 2017-02-15 | 天津四洋新能源科技有限公司 | High-and-low-temperature-controllable power lithium ion battery device |
| CN107069143A (en) * | 2017-06-12 | 2017-08-18 | 杨晓艳 | A kind of high efficiency and heat radiation lithium battery device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410302A (en) * | 2016-12-02 | 2017-02-15 | 天津四洋新能源科技有限公司 | High-and-low-temperature-controllable power lithium ion battery device |
| CN107069143A (en) * | 2017-06-12 | 2017-08-18 | 杨晓艳 | A kind of high efficiency and heat radiation lithium battery device |
| CN107069143B (en) * | 2017-06-12 | 2023-06-30 | 杨晓艳 | High-efficient heat dissipation lithium cell device |
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