WO2017080491A1 - Vehicle lithium ion starting battery - Google Patents
Vehicle lithium ion starting battery Download PDFInfo
- Publication number
- WO2017080491A1 WO2017080491A1 PCT/CN2016/105340 CN2016105340W WO2017080491A1 WO 2017080491 A1 WO2017080491 A1 WO 2017080491A1 CN 2016105340 W CN2016105340 W CN 2016105340W WO 2017080491 A1 WO2017080491 A1 WO 2017080491A1
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- WIPO (PCT)
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- battery
- group
- core
- conductor
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- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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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
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
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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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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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
- H01M50/50—Current conducting connections for cells or batteries
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
- H01M50/51—Connection only in series
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/593—Spacers; Insulating plates
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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
Definitions
- the present invention relates to a lithium ion battery for a vehicle, and more particularly to an automotive lithium ion starter battery.
- a lithium ion starter battery on the existing market consists of 1-4 large capacity (20-30Ah) battery cores with good high current discharge capability, which can meet a large starting current, but a large capacity battery.
- the body is thicker, the processing technology for sealing and packaging large-capacity electric core body is immature, the processing is difficult, the qualification rate is low, and the processing cost is high; in addition, if one of the battery core bodies is damaged, it can no longer be used, and the large capacity
- the battery core has a high probability of explosion and poor safety.
- lithium ion starter battery cell groups (equivalent to a single large-capacity cell body) are composed of a plurality of small-capacity (generally 10Ah and below) cell bodies, which have small capacity and high safety; The thickness is thin, the processing technology is mature, the processing is convenient, and the processing cost is low. Even if one of the small-capacity electric core bodies is damaged, the use of the starting battery is basically not affected, and the use can be continued.
- the current lithium ion starter battery needs to be composed of four or eight aforementioned small-capacity battery cores. Usually, these battery cores are bundled into one body, then placed in the battery casing, and several positions are used.
- the strip or several positioning blocks are stuck between the battery core group and the inner wall of the battery casing to position the battery core group, but the heat dissipation condition of the battery core group in the battery is poor, and the positioning effect of the battery core group is also poor; the adjacent battery core group There is also a possibility of a short circuit.
- the random arrangement, stacking and random connection of the electrodes of the adjacent cell groups of the four or eight cell groups may result in high space occupancy, messy wiring, and poor heat dissipation.
- the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art described above, and provide a lithium ion starter battery for a vehicle with a plurality of battery cores fixedly mounted by a special bracket, so that a plurality of battery core groups are fixed on the bracket, thereby reducing
- the space occupancy rate of multiple battery core groups improves the heat dissipation effect of the battery core group and avoids the short circuit phenomenon of adjacent battery core groups.
- an automotive lithium ion starter battery including a bracket and four battery core groups placed on the bracket, wherein
- the four battery core groups are distributed in upper and lower layers, and the battery core group is formed by stacking a plurality of electric core bodies, and the positive and negative electrode handles of the electric core body are respectively disposed at two ends of the electric core body;
- the first battery group and the fourth battery group are located in the upper layer, and the second battery group and the third battery group are located in the lower layer; the first to fourth battery groups are pressed from top to bottom and then from left to right. And finally the order from bottom to top;
- One pole of the first core group is connected to the first conductor as one pole of the battery, and one pole of the fourth core group is connected to the fifth conductor as the other pole of the battery; according to the distribution of the above-mentioned battery group, adjacent In the two battery groups, the positive pole of one of the battery core groups is on the same side as the negative pole of the other battery core group, and is connected by an electric conductor;
- the bracket is composed of a bottom plate, a top plate and left and right side plates, and is partitioned into a plurality of battery group receiving slots by a plurality of partitions in the bracket, and each battery group receiving slot is provided with a battery core group,
- the front and rear ends of the battery pack accommodating groove are open; the rear end portion of the battery pack accommodating groove forms at least one positioning stopper.
- the present invention uses an electrical conductor to connect adjacent groups of cells in series to achieve a desired voltage value. Since the positive pole of one of the two battery core groups is on the same side as the negative pole of the other battery core group, only one conductor is needed to connect two adjacent battery core groups in series, and the maximum Limit the conductive area to a good high current discharge capacity, with good heat dissipation and low space occupancy.
- This connection method connecting the entire via conductor distance, and using the battery of the present invention
- the group distribution is ordered so that the positive and negative poles of the battery are respectively placed in the upper half of the side of the battery core group, which is advantageous for external connection.
- the front side portion of the frame body of the present invention is not provided with a side plate for facilitating the installation of the battery core group; the rear side portion of the frame body is not provided with the side plate for the heat dissipation of the battery core group, and the partition plate is also beneficial for the heat dissipation of the battery core group.
- the battery pack is loaded from the front side of the frame body (ie, the front end portion of the battery core receiving groove), and then pushed into the battery pack receiving groove until the battery group is blocked by the positioning block, one electric
- the core group accommodating groove is provided with a battery core group, and the size of the battery group accommodating groove is made according to the size of the battery group.
- the bracket of the present invention is particularly suitable for installing a battery core group having a positive electrode at one end and a negative electrode at the other end (that is, the battery core group of the present invention, the positive and negative poles of most existing battery core groups are located at the same end or the same side), and are used.
- the same side electrode of the two adjacent battery groups ie, the positive pole of one battery core group and the negative pole of the other battery core group are on the same side
- are connected in series with one conductor thereby reducing the risk of short circuit between the positive and negative poles. .
- the anode of the first core group is connected to the first conductor as the anode of the battery
- the cathode of the fourth core group is connected to the fifth conductor as the cathode of the battery
- the cathode of the first core group and the second core The positive poles of the group are on the same side and connected by the second electrical conductor
- the negative poles of the second electric core group are on the same side as the positive poles of the third electric core group, and are connected by the third electrical conductor
- the positive electrodes of the battery cells are on the same side and are connected by a fourth electrical conductor.
- each side of the symmetrical group of the battery core is provided with an insulating plate and a conductive plate, the conductive plate is located outside the insulating plate, and the electrical conductor is connected to the conductive plate.
- the insulating plate is used to avoid the edge separation of the aluminum stencil for the pole stalk and the core body covering, and the conductive plate converges the current of all the small capacity electric core bodies, and the current output is uniform and stable.
- the positive shanks of all the electric core bodies are sequentially bent through the insulating plates and the conductive plates on one side of the battery core group, and then bent and welded on the conductive plates on the side, and the negative electrode handles of all the electric core bodies are sequentially passed through the battery core group.
- the insulating plate and the conductive plate on the other side are bent and welded on the conductive plate on the side to improve the positiveness of the core body.
- the conductor is in the form of a sheet whose area matches the area of the conductive plate to be connected, thereby maximizing the conductive area.
- the insulating plate and the conductive plate are provided with a plurality of through holes for penetrating the core body, and the size of the through holes is matched with the cross section of the core body shank to minimize the loss of the conductive plate area.
- the insulating plate on the same side of the electric core body is integrated with the conductive plate to facilitate processing and assembly.
- the starter battery further includes four upper and lower layers of battery cells disposed on the bracket (ie, the battery is composed of 8 battery groups), and the fifth battery group And the sixth battery group is located in the upper layer, the seventh battery group and the eighth battery group are located in the lower layer; the fifth to eighth battery groups are pressed from top to bottom, then from left to right, and finally from bottom to bottom
- the negative electrode of the fourth battery group is connected to the positive electrode of the fifth battery group).
- connection manner between the fifth to eighth battery groups is the same as that between the first to fourth battery groups (ie, the anode of the fifth battery group and the anode of the sixth battery group are The same side is connected by a sixth electrical conductor; the negative pole of the sixth electric core group is on the same side as the positive pole of the seventh electric core group, and is connected by the seventh electric conductor; the negative pole of the seventh electric core group and the eighth electric core group The positive electrode is on the same side and is connected by the eighth electrical conductor.
- One pole of the first battery core is connected to the first electrical conductor as one pole of the battery, and one pole of the eighth electrical core group is connected to the ninth electrical conductor as another battery. pole.
- the invention can be composed of 4 electric core groups to form a 12V series automobile starting battery, or 8 electric battery groups to form a 24V series automobile starting battery, and 12 electric battery groups to form a 36V series automobile starting battery, and so on.
- the positioning member is located at the upper groove edge or the lower groove edge of the rear end portion of the battery group receiving groove. Positioning the position of the battery pack into the battery pack receiving slot without affecting the heat dissipation of the battery pack; the front and rear end slots of the battery pack receiving slot are provided for placing conductive
- the positioning notch or the groove of the body, the positioning notch or the groove causes the electric conductor to be positioned and the outer end surface of the electric conductor does not protrude from the frame body, and the front and rear movement of the electric core group is restricted by the electric conductor; the top of the frame body A rib or a support column for heat-sealing the battery cover is provided, and the rib or the support post heat-seals the frame body and the battery cover.
- the present invention has the following advantages: 1) Among the two adjacent battery groups, the positive pole of one of the battery core groups is on the same side as the negative pole of the other battery core group, and only one electrical conductor is needed. Two adjacent battery groups can be connected in series, and the conductive area can be maximized to achieve good high current discharge capability, good heat dissipation effect and low space occupation; 2) using the present invention between the battery groups
- the connection mode is the closest to the entire via conductor, and the distribution of the battery cells of the present invention is used to arrange the positive and negative poles of the battery respectively in the upper half of the side of the battery core group, which is beneficial to the external connection of the battery core group;
- the bracket can conveniently connect the same side electrode of two adjacent battery groups in series with one electric conductor, which reduces the risk of short circuit between the positive and negative poles; 4) the bracket makes the positioning and heat dissipation effect of the electric core group good.
- FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.
- Fig. 2 is an exploded perspective view showing the structure of the embodiment 1 of the present invention after the stent is removed.
- Fig. 3 is a perspective structural view of the embodiment 1 of the present invention after the stent is removed.
- Figure 4 is a front elevational view of Figure 3.
- Figure 5 is a rear elevational view of Figure 3.
- FIG. 6 is a front view
- FIG. 7 is a rear view
- Figure 8 is an exploded perspective view showing a second embodiment of the present invention.
- Fig. 9 is an exploded perspective view showing the structure of the embodiment 2 of the present invention after the stent is removed.
- Figure 10 is a perspective structural view of the embodiment 2 of the present invention after the stent is removed.
- Figure 11 is a front elevational view of Figure 10.
- Figure 12 is a rear elevational view of Figure 10.
- FIG. 13-14 are schematic structural views of a stent according to Embodiment 2 of the present invention (FIG. 13 is a front view, and FIG. 14 is a rear view).
- Figure 15 is a structural exploded view of the battery core set of the present invention.
- the automobile lithium ion starting battery is composed of a bracket and four battery core groups mounted on the bracket, and the four battery core groups are distributed in upper and lower layers, and the electric power is distributed.
- the core group is formed by stacking a plurality of electric core bodies 20, and the positive and negative handles of the electric core body are respectively disposed at two ends of the electric core body.
- the first battery group 1 and the fourth battery group 4 are located in the upper layer, the second battery group 2 and the third battery group 3 are located in the lower layer; the first to fourth battery groups are pressed from top to bottom, and then From left to right, and finally from bottom to top.
- the positive electrode of the first battery group 1 is connected to the first electric conductor 11 as the positive electrode of the battery, and the negative electrode of the fourth electric core group 4 is connected to the fifth electric conductor 15 as the negative electrode of the battery.
- the anode of the first core group 1 is on the same side as the anode of the second core group 2, and is connected by the second conductor 12; the second core group 2
- the negative electrode is on the same side as the positive electrode of the third battery group 3, and is connected by the third electrical conductor 13; the negative electrode of the third battery core group 3 is on the same side as the positive electrode of the fourth battery core group 4, and is connected by the fourth electrical conductor 14 .
- the frame body 22 is composed of a bottom plate, a top plate and left and right side plates, and is partitioned into a plurality of battery group receiving grooves 24 through a plurality of partitions 23 in the frame body 22, and each of the battery core groups
- a battery pack is placed in the receiving slot 24, and the front and rear ends of the battery pack receiving slot 24 are open.
- a plurality of positioning members 25 are located at the upper groove side and the lower groove side of the rear end portion of the battery unit receiving groove 24; the front and rear end groove sides of the battery unit receiving groove 24 are provided with conductors for placing electrical conductors.
- the notch 26 or the recess 27 is positioned; the top of the frame 22 is provided with ribs or support posts 28 for its heat sealing with the battery cover.
- the symmetrical sides of the battery core group are respectively provided with an insulating plate 9 and a conductive plate 10, the conductive plate 10 is located outside the insulating plate 9, and the electrical conductor is connected to the conductive plate.
- the positive shanks of all the core bodies 20 are sequentially bent through the insulating plates and the conductive plates on one side of the battery core group, and then bent and welded on the conductive plates on the side, and the negative electrode handles of all the battery core bodies are sequentially passed through the battery group.
- the insulating plate and the conductive plate on one side are bent and welded on the conductive plate on the side.
- the conductor is in the form of a sheet whose area matches the area of the conductive plate to be connected.
- the insulating plate 9 and the conductive plate 10 are provided with a plurality of through holes 21 for penetrating the core body, and the size of the through holes is matched with the cross section of the pole piece of the core body.
- the insulating plate 9 on the same side of the core body is integrated with the conductive plate 10.
- the starting battery shown in FIG. 8-12 is different from the first embodiment in that the starting battery of the embodiment 2 is composed of 8 battery core groups, and the eight battery core groups are distributed in upper and lower layers, first.
- the battery group 1, the fourth battery group 4, the fifth battery group 5, and the sixth battery group 6 are located in the upper layer, the second battery group 2, the third battery group 3, the seventh battery group 7 and the The eight cell group 8 is located on the lower layer.
- the anode of the first core group 1 is on the same side as the anode of the second core group 2, and is connected by the second conductor 12;
- the cathode of the second core group 2 is on the same side as the anode of the third core group 3, And connected by the third electric conductor 13;
- the negative electrode of the third electric core group 3 is on the same side as the positive electrode of the fourth electric core group 4, and is connected by the fourth electric conductor 14;
- the negative electrode and the fifth electric core of the fourth electric core group 4 The positive poles of the group are on the same side and connected by a fifth electrical conductor;
- the anode of the fifth core group is on the same side as the anode of the sixth core group, and is connected by a sixth conductor;
- the cathode of the sixth core group and the seventh The positive electrodes of the battery group are on the same side and connected by the seventh electrical conductor;
- the negative electrode of the seventh electric core group is on the same side as the positive electrode of the eighth electric core group,
- the positive electrode of the first battery group is connected to the first conductor as the positive electrode of the battery, and the negative electrode of the eighth battery group is connected to the ninth conductor as the negative electrode of the battery.
- the bracket shown in Figures 13-14 has the same structure as the bracket of the first embodiment, but is laterally elongated in order to accommodate the installation of eight battery cells.
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- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
A vehicle lithium ion starting battery, comprising a frame and four battery core groups configured at the frame. The first battery core group (1) and the fourth battery core group (4) are disposed at an upper layer, and the second battery core group (2) and the third battery core group (3) are disposed at a lower layer. The first to fourth battery core groups are arranged in the order of top to bottom, then left to right, and finally bottom to top. In accordance with the above order of arrangement of the battery core groups, in two adjacent battery core groups, an anode of one battery core group and a cathode of another battery core group are at the same side and are connected with one conducting body. The solution fixes a plurality of battery core groups at a frame, reducing the ratio of space occupied by the plurality of battery core groups, improving a battery core group heat dissipating effect, and avoiding neighboring battery core groups undergoing short circuits.
Description
本发明涉及车辆用锂离子电池,具体地说是一种汽车锂离子启动电池。The present invention relates to a lithium ion battery for a vehicle, and more particularly to an automotive lithium ion starter battery.
目前应用于汽车的锂离子启动电池,此类电池要求启动电流很大,一般在150A到1500A,产生的瞬时功率也很大,一般在2KW到50KW。现有市场上的一种锂离子启动电池由1-4颗大容量(20-30Ah)的电芯体组成,具有良好的大电流放电能力,能满足较大的启动电流,但大容量电芯体较厚,目前密封包裹大容量电芯体的加工工艺不成熟,加工难度大,合格率低,加工成本高;此外,如损坏其中的一颗电芯体就无法再继续使用,且大容量的电芯体发生爆炸的几率大,安全性差。Currently used in automotive lithium-ion start-up batteries, such batteries require a large starting current, generally 150A to 1500A, and the instantaneous power generated is also very large, generally 2KW to 50KW. A lithium ion starter battery on the existing market consists of 1-4 large capacity (20-30Ah) battery cores with good high current discharge capability, which can meet a large starting current, but a large capacity battery. The body is thicker, the processing technology for sealing and packaging large-capacity electric core body is immature, the processing is difficult, the qualification rate is low, and the processing cost is high; in addition, if one of the battery core bodies is damaged, it can no longer be used, and the large capacity The battery core has a high probability of explosion and poor safety.
为此,也有的锂离子启动电池电芯组(相当于单颗大容量电芯体)是由多颗小容量(一般容量在10Ah及以下)电芯体组成,其容量小,安全性高;厚度薄,加工工艺成熟,加工方便,加工成本低,即使其中的一颗小容量电芯体被损坏也基本不影响启动电池的使用,仍可继续使用。目前的锂离子启动电池需要由4个或8个前述小容量电芯体组成的电芯组构成,通常是将这些电芯组用带捆成一体,然后放入电池外壳内,并用几根定位条或几块定位块卡在电芯组与电池外壳内壁之间,使电芯组定位,但电池内电芯组的散热情况差,电芯组的定位效果也差;相邻的电芯组也有可能发生短路现象。此外,4个或8个电芯组的随意排布、堆置及相邻电芯组电极的随意连接会导致空间占用率高,连线凌乱,散热效果也差。
To this end, some lithium ion starter battery cell groups (equivalent to a single large-capacity cell body) are composed of a plurality of small-capacity (generally 10Ah and below) cell bodies, which have small capacity and high safety; The thickness is thin, the processing technology is mature, the processing is convenient, and the processing cost is low. Even if one of the small-capacity electric core bodies is damaged, the use of the starting battery is basically not affected, and the use can be continued. The current lithium ion starter battery needs to be composed of four or eight aforementioned small-capacity battery cores. Usually, these battery cores are bundled into one body, then placed in the battery casing, and several positions are used. The strip or several positioning blocks are stuck between the battery core group and the inner wall of the battery casing to position the battery core group, but the heat dissipation condition of the battery core group in the battery is poor, and the positioning effect of the battery core group is also poor; the adjacent battery core group There is also a possibility of a short circuit. In addition, the random arrangement, stacking and random connection of the electrodes of the adjacent cell groups of the four or eight cell groups may result in high space occupancy, messy wiring, and poor heat dissipation.
发明内容Summary of the invention
本发明所要解决的技术问题是克服上述现有技术存在的不足,提供一种用专用支架固定安装多个电芯组的汽车锂离子启动电池,使多个电芯组被固定在支架上,降低多个电芯组的空间占用率,提高电芯组的散热效果,避免相邻电芯组发生的短路现象。The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art described above, and provide a lithium ion starter battery for a vehicle with a plurality of battery cores fixedly mounted by a special bracket, so that a plurality of battery core groups are fixed on the bracket, thereby reducing The space occupancy rate of multiple battery core groups improves the heat dissipation effect of the battery core group and avoids the short circuit phenomenon of adjacent battery core groups.
为此,本发明采用如下的技术方案:汽车锂离子启动电池,包括支架和放置在支架上的4个电芯组,其特征在于,To this end, the present invention adopts the following technical solution: an automotive lithium ion starter battery, including a bracket and four battery core groups placed on the bracket, wherein
所述的4个电芯组呈上、下两层分布,所述的电芯组均由多颗电芯体叠加而成,电芯体的正、负极柄分设在电芯体的两端;第一电芯组和第四电芯组位于上层,第二电芯组和第三电芯组位于下层;所述的第一至第四电芯组按由上往下,再由左向右,最后由下往上的次序分布;The four battery core groups are distributed in upper and lower layers, and the battery core group is formed by stacking a plurality of electric core bodies, and the positive and negative electrode handles of the electric core body are respectively disposed at two ends of the electric core body; The first battery group and the fourth battery group are located in the upper layer, and the second battery group and the third battery group are located in the lower layer; the first to fourth battery groups are pressed from top to bottom and then from left to right. And finally the order from bottom to top;
第一电芯组的一极连接第一导电体作为电池的一极,第四电芯组的一极连接第五导电体作为电池的另一极;按照上述电芯组的分布排序,相邻的两个电芯组中,其中一个电芯组的正极与另一个电芯组的负极在同一侧,并用一导电体连接;One pole of the first core group is connected to the first conductor as one pole of the battery, and one pole of the fourth core group is connected to the fifth conductor as the other pole of the battery; according to the distribution of the above-mentioned battery group, adjacent In the two battery groups, the positive pole of one of the battery core groups is on the same side as the negative pole of the other battery core group, and is connected by an electric conductor;
所述的支架由底板、顶板和左、右侧板构成,通过支架内的多个隔板隔成多个电芯组容纳槽,每个电芯组容纳槽内放置一个电芯组,所述电芯组容纳槽的前、后端部均开口;电芯组容纳槽的后端部形成至少一个定位挡件。The bracket is composed of a bottom plate, a top plate and left and right side plates, and is partitioned into a plurality of battery group receiving slots by a plurality of partitions in the bracket, and each battery group receiving slot is provided with a battery core group, The front and rear ends of the battery pack accommodating groove are open; the rear end portion of the battery pack accommodating groove forms at least one positioning stopper.
本发明用导电体将相邻的电芯组串联,达到所需要的电压值。由于相邻的两个电芯组中,其中一个电芯组的正极与另一个电芯组的负极在同一侧,只需要一个导电体就可以串联相邻的两个电芯组,并且可以最大限度地增加导电面积,达到良好的大电流放电能力,具有良好的散热效果和低的空间占用率。这种连接方式,连接整个通路导体距离最近,并且采用本发明的电芯
组分布排序,使电池的正、负极分别置于电芯组侧面的上半部,有利于对外连接。The present invention uses an electrical conductor to connect adjacent groups of cells in series to achieve a desired voltage value. Since the positive pole of one of the two battery core groups is on the same side as the negative pole of the other battery core group, only one conductor is needed to connect two adjacent battery core groups in series, and the maximum Limit the conductive area to a good high current discharge capacity, with good heat dissipation and low space occupancy. This connection method, connecting the entire via conductor distance, and using the battery of the present invention
The group distribution is ordered so that the positive and negative poles of the battery are respectively placed in the upper half of the side of the battery core group, which is advantageous for external connection.
本发明架体的前侧部不安装侧板,是为了方便电芯组的安装;架体的后侧部不安装侧板,是为了电芯组的散热,隔板也利于电芯组的散热。使用时,将电芯组从架体的前侧部(即电芯组容纳槽的前端部)装入,往后推入电芯组容纳槽内直至电芯组被定位挡件阻挡,一个电芯组容纳槽安装一个电芯组,电芯组容纳槽的大小根据电芯组的大小来制作。本发明的支架特别适用于安装一端为正极、另一端为负极的电芯组(即本发明的电芯组,现有绝大多数电芯组的正、负极位于同一端或同一侧),使用时,支架方便将相邻两个电芯组的同一侧电极(即一个电芯组的正极与另一个电芯组的负极在同一侧)用一块导电体串联,降低了正负极短路的风险。The front side portion of the frame body of the present invention is not provided with a side plate for facilitating the installation of the battery core group; the rear side portion of the frame body is not provided with the side plate for the heat dissipation of the battery core group, and the partition plate is also beneficial for the heat dissipation of the battery core group. . When in use, the battery pack is loaded from the front side of the frame body (ie, the front end portion of the battery core receiving groove), and then pushed into the battery pack receiving groove until the battery group is blocked by the positioning block, one electric The core group accommodating groove is provided with a battery core group, and the size of the battery group accommodating groove is made according to the size of the battery group. The bracket of the present invention is particularly suitable for installing a battery core group having a positive electrode at one end and a negative electrode at the other end (that is, the battery core group of the present invention, the positive and negative poles of most existing battery core groups are located at the same end or the same side), and are used. When the bracket is convenient, the same side electrode of the two adjacent battery groups (ie, the positive pole of one battery core group and the negative pole of the other battery core group are on the same side) are connected in series with one conductor, thereby reducing the risk of short circuit between the positive and negative poles. .
进一步,所述第一电芯组的正极连接第一导电体作为电池的正极,第四电芯组的负极连接第五导电体作为电池的负极;第一电芯组的负极与第二电芯组的正极在同一侧,并用第二导电体连接;第二电芯组的负极与第三电芯组的正极在同一侧,并用第三导电体连接;第三电芯组的负极与第四电芯组的正极在同一侧,并用第四导电体连接。Further, the anode of the first core group is connected to the first conductor as the anode of the battery, the cathode of the fourth core group is connected to the fifth conductor as the cathode of the battery; the cathode of the first core group and the second core The positive poles of the group are on the same side and connected by the second electrical conductor; the negative poles of the second electric core group are on the same side as the positive poles of the third electric core group, and are connected by the third electrical conductor; the negative pole of the third electric core group and the fourth The positive electrodes of the battery cells are on the same side and are connected by a fourth electrical conductor.
进一步,所述电芯组对称的两侧各设有一绝缘板和一导电板,导电板位于绝缘板的外侧,所述的导电体连接在导电板上。绝缘板用于避免极柄与电芯体包覆用的铝塑膜的封边隔离,导电板将所有小容量电芯体的电流汇聚,电流输出均匀、稳定。Further, each side of the symmetrical group of the battery core is provided with an insulating plate and a conductive plate, the conductive plate is located outside the insulating plate, and the electrical conductor is connected to the conductive plate. The insulating plate is used to avoid the edge separation of the aluminum stencil for the pole stalk and the core body covering, and the conductive plate converges the current of all the small capacity electric core bodies, and the current output is uniform and stable.
进一步,所有电芯体的正极柄依次穿过位于电芯组一侧的绝缘板和导电板后折弯焊接在该侧的导电板上,所有电芯体的负极柄依次穿过位于电芯组另一侧的绝缘板和导电板后折弯焊接在该侧的导电板上,提高电芯体的正、
负极柄与导电板的焊接牢度。Further, the positive shanks of all the electric core bodies are sequentially bent through the insulating plates and the conductive plates on one side of the battery core group, and then bent and welded on the conductive plates on the side, and the negative electrode handles of all the electric core bodies are sequentially passed through the battery core group. The insulating plate and the conductive plate on the other side are bent and welded on the conductive plate on the side to improve the positiveness of the core body.
The soldering fastness of the negative electrode handle to the conductive plate.
进一步,所述的导电体呈片状,其面积与所要连接的导电板的面积匹配,最大限度地增加导电面积。Further, the conductor is in the form of a sheet whose area matches the area of the conductive plate to be connected, thereby maximizing the conductive area.
进一步,所述绝缘板和导电板上开有多个用于电芯体极柄贯穿的通孔,通孔的大小与电芯体极柄的横截面匹配,尽可能减少导电板面积的损失。Further, the insulating plate and the conductive plate are provided with a plurality of through holes for penetrating the core body, and the size of the through holes is matched with the cross section of the core body shank to minimize the loss of the conductive plate area.
进一步,位于电芯体同一侧的绝缘板与导电板复合成一体,方便加工和组装。Further, the insulating plate on the same side of the electric core body is integrated with the conductive plate to facilitate processing and assembly.
进一步,所述的启动电池还包括放置在支架上的4个呈上、下两层分布的电芯组(即此时的电池由8个电芯组构成),所述的第五电芯组和第六电芯组位于上层,第七电芯组和第八电芯组位于下层;所述的第五至第八电芯组按由上往下,再由左向右,最后由下往上的次序分布;所述的第五电芯组与第四电芯组相邻,用第五导电体连接(此时的第五导电体不作为电池的另一极使用,而是用于将第四电芯组的负极与第五电芯组的正极连接)。Further, the starter battery further includes four upper and lower layers of battery cells disposed on the bracket (ie, the battery is composed of 8 battery groups), and the fifth battery group And the sixth battery group is located in the upper layer, the seventh battery group and the eighth battery group are located in the lower layer; the fifth to eighth battery groups are pressed from top to bottom, then from left to right, and finally from bottom to bottom The order distribution of the upper; the fifth battery group is adjacent to the fourth battery group and connected by the fifth electrical conductor (the fifth electrical conductor at this time is not used as the other pole of the battery, but is used for The negative electrode of the fourth battery group is connected to the positive electrode of the fifth battery group).
进一步,所述第五至第八电芯组之间的连接方式与第一至第四电芯组之间的连接方式相同(即第五电芯组的负极与第六电芯组的正极在同一侧,并用第六导电体连接;第六电芯组的负极与第七电芯组的正极在同一侧,并用第七导电体连接;第七电芯组的负极与第八电芯组的正极在同一侧,并用第八导电体连接),第一电芯组的一极连接第一导电体作为电池的一极,第八电芯组的一极连接第九导电体作为电池的另一极。Further, the connection manner between the fifth to eighth battery groups is the same as that between the first to fourth battery groups (ie, the anode of the fifth battery group and the anode of the sixth battery group are The same side is connected by a sixth electrical conductor; the negative pole of the sixth electric core group is on the same side as the positive pole of the seventh electric core group, and is connected by the seventh electric conductor; the negative pole of the seventh electric core group and the eighth electric core group The positive electrode is on the same side and is connected by the eighth electrical conductor. One pole of the first battery core is connected to the first electrical conductor as one pole of the battery, and one pole of the eighth electrical core group is connected to the ninth electrical conductor as another battery. pole.
本发明可以由4个电芯组组成12V系列汽车启动电池,也可以由8个电芯组组成24V系列汽车启动电池,还可以由12个电芯组组成36V系列汽车启动电池,以此类推。The invention can be composed of 4 electric core groups to form a 12V series automobile starting battery, or 8 electric battery groups to form a 24V series automobile starting battery, and 12 electric battery groups to form a 36V series automobile starting battery, and so on.
进一步,所述的定位挡件位于电芯组容纳槽后端部的上槽边处或下槽边
处,在不影响电芯组散热的情况下,对电芯组推入电芯组容纳槽内的位置进行定位;所述电芯组容纳槽的前、后端部槽边设有用于放置导电体的定位缺口或凹槽,该定位缺口或凹槽使导电体被定位且导电体的外端面不突出于架体,通过导电体使电芯组的前、后移动得到限制;架体的顶部设有用于其与电池盖热封固定的筋条或支撑柱,筋条或支撑柱使架体与电池盖热封成一整体。Further, the positioning member is located at the upper groove edge or the lower groove edge of the rear end portion of the battery group receiving groove.
Positioning the position of the battery pack into the battery pack receiving slot without affecting the heat dissipation of the battery pack; the front and rear end slots of the battery pack receiving slot are provided for placing conductive The positioning notch or the groove of the body, the positioning notch or the groove causes the electric conductor to be positioned and the outer end surface of the electric conductor does not protrude from the frame body, and the front and rear movement of the electric core group is restricted by the electric conductor; the top of the frame body A rib or a support column for heat-sealing the battery cover is provided, and the rib or the support post heat-seals the frame body and the battery cover.
本发明与现有的技术相比具有以下优点:1)相邻的两个电芯组中,其中一个电芯组的正极与另一个电芯组的负极在同一侧,只需要一个导电体就可以串联相邻的两个电芯组,并且可以最大限度地增加导电面积,达到良好的大电流放电能力,具有良好的散热效果和低的空间占用率;2)采用本发明电芯组之间的连接方式,连接整个通路导体距离最近,并且采用本发明的电芯组分布排序,使电池的正、负极分别置于电芯组侧面的上半部,有利于电芯组的对外连接;3)支架可以方便地将相邻两个电芯组的同一侧电极用一导电体串联,降低了正负极短路的风险;4)支架使电芯组的定位和散热效果好。Compared with the prior art, the present invention has the following advantages: 1) Among the two adjacent battery groups, the positive pole of one of the battery core groups is on the same side as the negative pole of the other battery core group, and only one electrical conductor is needed. Two adjacent battery groups can be connected in series, and the conductive area can be maximized to achieve good high current discharge capability, good heat dissipation effect and low space occupation; 2) using the present invention between the battery groups The connection mode is the closest to the entire via conductor, and the distribution of the battery cells of the present invention is used to arrange the positive and negative poles of the battery respectively in the upper half of the side of the battery core group, which is beneficial to the external connection of the battery core group; The bracket can conveniently connect the same side electrode of two adjacent battery groups in series with one electric conductor, which reduces the risk of short circuit between the positive and negative poles; 4) the bracket makes the positioning and heat dissipation effect of the electric core group good.
图1为本发明实施例1的结构分解图。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view showing a first embodiment of the present invention.
图2为本发明实施例1移去支架后的结构分解图。Fig. 2 is an exploded perspective view showing the structure of the embodiment 1 of the present invention after the stent is removed.
图3为本发明实施例1移去支架后的立体结构图。Fig. 3 is a perspective structural view of the embodiment 1 of the present invention after the stent is removed.
图4为图3的前视图。Figure 4 is a front elevational view of Figure 3.
图5为图3的后视图。Figure 5 is a rear elevational view of Figure 3.
图6-7为本发明实施例1支架的结构示意图(图6为正面视图,图7为后面视图)。6-7 are schematic structural views of a stent according to Embodiment 1 of the present invention (FIG. 6 is a front view, and FIG. 7 is a rear view).
图8为本发明实施例2的结构分解图。
Figure 8 is an exploded perspective view showing a second embodiment of the present invention.
图9为本发明实施例2移去支架后的结构分解图。Fig. 9 is an exploded perspective view showing the structure of the embodiment 2 of the present invention after the stent is removed.
图10为本发明实施例2移去支架后的立体结构图。Figure 10 is a perspective structural view of the embodiment 2 of the present invention after the stent is removed.
图11为图10的前视图。Figure 11 is a front elevational view of Figure 10.
图12为图10的后视图。Figure 12 is a rear elevational view of Figure 10.
图13-14为本发明实施例2支架的结构示意图(图13为正面视图,图14为后面视图)。13-14 are schematic structural views of a stent according to Embodiment 2 of the present invention (FIG. 13 is a front view, and FIG. 14 is a rear view).
图15为本发明电芯组的结构分解图。Figure 15 is a structural exploded view of the battery core set of the present invention.
图中,1-第一电芯组,2-第二电芯组,3-第三电芯组,4-第四电芯组,5-第五电芯组,6-第六电芯组,7-第七电芯组,8-第八电芯组,9-绝缘板,10-导电板,11-第一导电体,12-第二导电体,13-第三导电体,14-第四导电体,15-第五导电体,16-第六导电体,17-第七导电体,18-第八导电体,19-第九导电体,20-电芯体,21-通孔,22-架体,23-隔板,24-电芯组容纳槽,25-定位挡件,26-定位缺口,27-凹槽,28-支撑柱。In the figure, 1-first cell group, 2-second cell group, 3-third cell group, 4-fourth cell group, 5-fifth cell group, 6-six cell group , 7-seventh battery core group, 8-eighth battery core group, 9-insulation board, 10-conductive board, 11-first conductor, 12-second conductor, 13-third conductor, 14- Fourth conductor, 15-fifth conductor, 16-sixth conductor, 17-seventh conductor, 18-eighth conductor, 19-ninth conductor, 20-cell body, 21-via , 22-frame, 23-separator, 24-cell group receiving groove, 25-positioning block, 26-positioning notch, 27-groove, 28-support column.
实施例1Example 1
如图1-5所示的汽车锂离子启动电池,其由支架和安装在支架上的4个电芯组组成,所述的4个电芯组呈上、下两层分布,所述的电芯组均由多颗电芯体20叠加而成,电芯体的正、负极柄分设在电芯体的两端。As shown in FIG. 1-5, the automobile lithium ion starting battery is composed of a bracket and four battery core groups mounted on the bracket, and the four battery core groups are distributed in upper and lower layers, and the electric power is distributed. The core group is formed by stacking a plurality of electric core bodies 20, and the positive and negative handles of the electric core body are respectively disposed at two ends of the electric core body.
第一电芯组1和第四电芯组4位于上层,第二电芯组2和第三电芯组3位于下层;所述的第一至第四电芯组按由上往下,再由左向右,最后由下往上的次序分布。第一电芯组1的正极连接第一导电体11作为电池的正极,第四电芯组4的负极连接第五导电体15作为电池的负极。第一电芯组1的负极与第二电芯组2的正极在同一侧,并用第二导电体12连接;第二电芯组2的
负极与第三电芯组3的正极在同一侧,并用第三导电体13连接;第三电芯组3的负极与第四电芯组4的正极在同一侧,并用第四导电体14连接。The first battery group 1 and the fourth battery group 4 are located in the upper layer, the second battery group 2 and the third battery group 3 are located in the lower layer; the first to fourth battery groups are pressed from top to bottom, and then From left to right, and finally from bottom to top. The positive electrode of the first battery group 1 is connected to the first electric conductor 11 as the positive electrode of the battery, and the negative electrode of the fourth electric core group 4 is connected to the fifth electric conductor 15 as the negative electrode of the battery. The anode of the first core group 1 is on the same side as the anode of the second core group 2, and is connected by the second conductor 12; the second core group 2
The negative electrode is on the same side as the positive electrode of the third battery group 3, and is connected by the third electrical conductor 13; the negative electrode of the third battery core group 3 is on the same side as the positive electrode of the fourth battery core group 4, and is connected by the fourth electrical conductor 14 .
如图6-7所示的支架,架体22由底板、顶板和左右侧板构成,通过架体22内的多个隔板23隔成多个电芯组容纳槽24,每个电芯组容纳槽24内放置一个电芯组,电芯组容纳槽24的前、后端部均开口。多个定位挡件25位于电芯组容纳槽24后端部的上槽边处和下槽边处;所述电芯组容纳槽24的前、后端部槽边设有用于放置导电体的定位缺口26或凹槽27;架体22的顶部设有用于其与电池盖热封固定的筋条或支撑柱28。As shown in FIG. 6-7, the frame body 22 is composed of a bottom plate, a top plate and left and right side plates, and is partitioned into a plurality of battery group receiving grooves 24 through a plurality of partitions 23 in the frame body 22, and each of the battery core groups A battery pack is placed in the receiving slot 24, and the front and rear ends of the battery pack receiving slot 24 are open. A plurality of positioning members 25 are located at the upper groove side and the lower groove side of the rear end portion of the battery unit receiving groove 24; the front and rear end groove sides of the battery unit receiving groove 24 are provided with conductors for placing electrical conductors. The notch 26 or the recess 27 is positioned; the top of the frame 22 is provided with ribs or support posts 28 for its heat sealing with the battery cover.
如图15所示,所述电芯组对称的两侧各设有绝缘板9和导电板10,导电板10位于绝缘板9的外侧,所述的导电体连接在导电板上。所有电芯体20的正极柄依次穿过位于电芯组一侧的绝缘板和导电板后折弯焊接在该侧的导电板上,所有电芯体的负极柄依次穿过位于电芯组另一侧的绝缘板和导电板后折弯焊接在该侧的导电板上。所述的导电体呈片状,其面积与所要连接的导电板的面积匹配。As shown in FIG. 15, the symmetrical sides of the battery core group are respectively provided with an insulating plate 9 and a conductive plate 10, the conductive plate 10 is located outside the insulating plate 9, and the electrical conductor is connected to the conductive plate. The positive shanks of all the core bodies 20 are sequentially bent through the insulating plates and the conductive plates on one side of the battery core group, and then bent and welded on the conductive plates on the side, and the negative electrode handles of all the battery core bodies are sequentially passed through the battery group. The insulating plate and the conductive plate on one side are bent and welded on the conductive plate on the side. The conductor is in the form of a sheet whose area matches the area of the conductive plate to be connected.
所述绝缘板9和导电板10上开有多个用于电芯体极柄贯穿的通孔21,通孔的大小与电芯体极柄的横截面匹配。位于电芯体同一侧的绝缘板9与导电板10复合成一体。The insulating plate 9 and the conductive plate 10 are provided with a plurality of through holes 21 for penetrating the core body, and the size of the through holes is matched with the cross section of the pole piece of the core body. The insulating plate 9 on the same side of the core body is integrated with the conductive plate 10.
实施例2Example 2
如图8-12所示的启动电池,与实施例1的不同之处在于,实施例2的启动电池由8个电芯组构成,8个电芯组呈上、下两层分布,第一电芯组1、第四电芯组4、第五电芯组5和第六电芯组6位于上层,第二电芯组2、第三电芯组3、第七电芯组7和第八电芯组8位于下层。
The starting battery shown in FIG. 8-12 is different from the first embodiment in that the starting battery of the embodiment 2 is composed of 8 battery core groups, and the eight battery core groups are distributed in upper and lower layers, first. The battery group 1, the fourth battery group 4, the fifth battery group 5, and the sixth battery group 6 are located in the upper layer, the second battery group 2, the third battery group 3, the seventh battery group 7 and the The eight cell group 8 is located on the lower layer.
第一电芯组1的负极与第二电芯组2的正极在同一侧,并用第二导电体12连接;第二电芯组2的负极与第三电芯组3的正极在同一侧,并用第三导电体13连接;第三电芯组3的负极与第四电芯组4的正极在同一侧,并用第四导电体14连接;第四电芯组4的负极与第五电芯组的正极在同一侧,并用第五电导体连接;第五电芯组的负极与第六电芯组的正极在同一侧,并用第六导电体连接;第六电芯组的负极与第七电芯组的正极在同一侧,并用第七导电体连接;第七电芯组的负极与第八电芯组的正极在同一侧,并用第八导电体连接。The anode of the first core group 1 is on the same side as the anode of the second core group 2, and is connected by the second conductor 12; the cathode of the second core group 2 is on the same side as the anode of the third core group 3, And connected by the third electric conductor 13; the negative electrode of the third electric core group 3 is on the same side as the positive electrode of the fourth electric core group 4, and is connected by the fourth electric conductor 14; the negative electrode and the fifth electric core of the fourth electric core group 4 The positive poles of the group are on the same side and connected by a fifth electrical conductor; the anode of the fifth core group is on the same side as the anode of the sixth core group, and is connected by a sixth conductor; the cathode of the sixth core group and the seventh The positive electrodes of the battery group are on the same side and connected by the seventh electrical conductor; the negative electrode of the seventh electric core group is on the same side as the positive electrode of the eighth electric core group, and is connected by the eighth electrical conductor.
第一电芯组的正极连接第一导电体作为电池的正极,第八电芯组的负极连接第九导电体作为电池的负极。The positive electrode of the first battery group is connected to the first conductor as the positive electrode of the battery, and the negative electrode of the eighth battery group is connected to the ninth conductor as the negative electrode of the battery.
如图13-14所示的支架与实施例1的支架结构相同,只是为了适应安装8个电芯组而作了横向加长。The bracket shown in Figures 13-14 has the same structure as the bracket of the first embodiment, but is laterally elongated in order to accommodate the installation of eight battery cells.
以上仅就本发明较佳的实施例作了说明,但不能理解为是对权利要求的限制。本发明不仅局限于以上实施例,其具体结构允许有变化。凡在本发明独立权利要求的保护范围内所作的各种变化均在本发明的保护范围内。
The above description of the preferred embodiments of the invention has been presented by way of illustration only The present invention is not limited to the above embodiments, and its specific structure allows variations. Various changes made within the scope of the invention of the invention are within the scope of the invention.
Claims (10)
- 汽车锂离子启动电池,包括支架和放置在支架上的4个电芯组,其特征在于,A vehicle lithium ion starter battery comprising a bracket and four battery core groups placed on the bracket, wherein所述的4个电芯组呈上、下两层分布,所述的电芯组均由多颗电芯体(20)叠加而成,电芯体的正、负极柄分设在电芯体的两端;第一电芯组(1)和第四电芯组(4)位于上层,第二电芯组(2)和第三电芯组(3)位于下层;所述的第一至第四电芯组按由上往下,再由左向右,最后由下往上的次序分布;The four battery core groups are distributed in upper and lower layers, and the battery core group is formed by stacking a plurality of electric core bodies (20), and the positive and negative magnetic handles of the electric core body are respectively disposed on the electric core body. Both ends; the first battery group (1) and the fourth battery group (4) are located in the upper layer, and the second battery group (2) and the third battery group (3) are located in the lower layer; The four battery core groups are arranged from top to bottom, then from left to right, and finally from bottom to top;第一电芯组(1)的一极连接第一导电体(11)作为电池的一极,第四电芯组(4)的一极连接第五导电体(15)作为电池的另一极;按照上述电芯组的分布排序,相邻的两个电芯组中,其中一个电芯组的正极与另一个电芯组的负极在同一侧,并用一导电体连接;One pole of the first core group (1) is connected to the first conductor (11) as one pole of the battery, and one pole of the fourth core group (4) is connected to the fifth conductor (15) as the other pole of the battery. According to the distribution order of the above-mentioned battery groups, one of the two adjacent battery groups is on the same side as the negative electrode of the other battery group, and is connected by an electric conductor;所述的支架包括由底板、顶板和左右侧板构成的架体(22),通过架体(22)内的多个隔板(23)隔成多个电芯组容纳槽(24),每个电芯组容纳槽(24)内放置一个电芯组,所述电芯组容纳槽(24)的前、后端部均开口;电芯组容纳槽(24)的后端部形成至少一个定位挡件(25)。The bracket comprises a frame body (22) composed of a bottom plate, a top plate and left and right side plates, and is partitioned into a plurality of battery group receiving slots (24) through a plurality of partitions (23) in the frame body (22), each of which A battery pack is placed in the battery pack receiving groove (24), and the front and rear ends of the battery pack receiving groove (24) are open; the rear end portion of the battery pack receiving groove (24) forms at least one Positioning stop (25).
- 根据权利要求1所述的汽车锂离子启动电池,其特征在于,所述第一电芯组(1)的正极连接第一导电体(11)作为电池的正极,第四电芯组(4)的负极连接第五导电体(15)作为电池的负极;第一电芯组(1)的负极与第二电芯组(2)的正极在同一侧,并用第二导电体(12)连接;第二电芯组(2)的负极与第三电芯组(3)的正极在同一侧,并用第三导电体(13)连接;第三电芯组(3)的负极与第四电芯组(4)的正极在同一侧,并用第四导电体(14)连接。The automotive lithium ion starter battery according to claim 1, wherein the anode of the first core group (1) is connected to the first conductor (11) as the anode of the battery, and the fourth core group (4) The negative electrode is connected to the fifth electric conductor (15) as the negative electrode of the battery; the negative electrode of the first electric core group (1) is on the same side as the positive electrode of the second electric core group (2), and is connected by the second electric conductor (12); The negative electrode of the second core group (2) is on the same side as the positive electrode of the third battery core group (3), and is connected by the third electrical conductor (13); the negative electrode of the third battery core group (3) and the fourth battery core The positive electrodes of group (4) are on the same side and are connected by a fourth electrical conductor (14).
- 根据权利要求1或2所述的汽车锂离子启动电池,其特征在于,所述电芯组对称的两侧各设有一绝缘板(9)和一导电板(10),导电板(10)位于绝缘板(9) 的外侧,所述的导电体连接在导电板上。The automotive lithium ion starter battery according to claim 1 or 2, wherein each of the two sides of the battery core is symmetrically provided with an insulating plate (9) and a conductive plate (10), and the conductive plate (10) is located. Insulation board (9) On the outside, the electrical conductor is connected to the conductive plate.
- 根据权利要求3所述的汽车锂离子启动电池,其特征在于,所有电芯体(20)的正极柄依次穿过位于电芯组一侧的绝缘板和导电板后折弯焊接在该侧的导电板上,所有电芯体的负极柄依次穿过位于电芯组另一侧的绝缘板和导电板后折弯焊接在该侧的导电板上。The automotive lithium ion starter battery according to claim 3, wherein the positive shanks of all the electric core bodies (20) are sequentially bent through the insulating plates and the conductive plates on one side of the battery core group, and are bent and welded on the side. On the conductive plate, the negative handles of all the core bodies are sequentially bent through the insulating plates and the conductive plates on the other side of the battery core group, and then bent and welded on the conductive plates on the side.
- 根据权利要求3所述的汽车锂离子启动电池,其特征在于,所述的导电体呈片状,其面积与所要连接的导电板的面积匹配。The automotive lithium ion starter battery according to claim 3, wherein said conductor is in the form of a sheet having an area matching the area of the conductive plate to be connected.
- 根据权利要求3所述的汽车锂离子启动电池,其特征在于,所述绝缘板(9)和导电板(10)上开有多个用于电芯体极柄贯穿的通孔(21),通孔的大小与电芯体极柄的横截面匹配。The automotive lithium ion starter battery according to claim 3, wherein the insulating plate (9) and the conductive plate (10) are provided with a plurality of through holes (21) for penetrating the core body. The size of the through hole matches the cross section of the pole piece of the battery body.
- 根据权利要求3所述的汽车锂离子启动电池,其特征在于,位于电芯体同一侧的绝缘板(9)与导电板(10)复合成一体。The automotive lithium ion starter battery according to claim 3, wherein the insulating plate (9) on the same side of the core body is integrated with the conductive plate (10).
- 根据权利要求1所述的汽车锂离子启动电池,其特征在于,它还包括放置在支架上的4个呈上、下两层分布的电芯组,所述的第五电芯组(5)和第六电芯组(6)位于上层,第七电芯组(7)和第八电芯组(8)位于下层;所述的第五至第八电芯组按由上往下,再由左向右,最后由下往上的次序分布;所述的第五电芯组(5)与第四电芯组(4)相邻,用第五导电体(15)连接。The automotive lithium ion starter battery according to claim 1, further comprising four upper and lower two-layered battery core groups placed on the bracket, said fifth battery core group (5) And the sixth battery group (6) is located in the upper layer, the seventh battery group (7) and the eighth battery group (8) are located in the lower layer; the fifth to eighth battery groups are pressed from top to bottom, and then The order from left to right and finally from bottom to top is distributed; the fifth battery group (5) is adjacent to the fourth battery group (4) and connected by the fifth conductor (15).
- 根据权利要求8所述的汽车锂离子启动电池,其特征在于,所述第五至第八电芯组之间的连接方式与第一至第四电芯组之间的连接方式相同,第一电芯组(1)的一极连接第一导电体(11)作为电池的一极,第八电芯组(8)的一极连接第九导电体(19)作为电池的另一极。The automotive lithium ion starter battery according to claim 8, wherein the connection manner between the fifth to eighth battery groups is the same as that between the first to fourth battery groups, the first One pole of the battery pack (1) is connected to the first conductor (11) as one pole of the battery, and one pole of the eighth core group (8) is connected to the ninth conductor (19) as the other pole of the battery.
- 根据权利要求1所述的汽车锂离子启动电池,其特征在于,所述的定位挡件(25)位于电芯组容纳槽(24)后端部的上槽边处或下槽边处;所述电芯组容 纳槽(24)的前、后端部槽边设有用于放置导电体的定位缺口(26)或凹槽(27);架体(22)的顶部设有用于其与电池盖热封固定的筋条或支撑柱(28)。 The automotive lithium ion starter battery according to claim 1, wherein said positioning member (25) is located at an upper groove side or a lower groove side of a rear end portion of the battery unit receiving groove (24); Battery assembly The front and rear end groove sides of the nanogroove (24) are provided with positioning notches (26) or grooves (27) for placing electrical conductors; the top of the frame body (22) is provided for heat sealing and fixing thereof with the battery cover. Rib or support column (28).
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