CN201758159U - Large capacity 12.8 V lithium battery - Google Patents
Large capacity 12.8 V lithium battery Download PDFInfo
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- CN201758159U CN201758159U CN201020505553XU CN201020505553U CN201758159U CN 201758159 U CN201758159 U CN 201758159U CN 201020505553X U CN201020505553X U CN 201020505553XU CN 201020505553 U CN201020505553 U CN 201020505553U CN 201758159 U CN201758159 U CN 201758159U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to a group technology of a lithium battery, suitable for the lithium battery used as a power battery and an energy storage battery, especially a large capacity 12.8 V lithium battery, comprising an outer battery box, a series connected battery pack arranged in the battery box and a power supply management system with a lithium battery protection circuit, wherein the series connected battery pack is formed by connecting four ferric phosphate lithium batteries with nominal voltage of 3.2V in series; an anode and a cathode of the battery pack connected with the lithium battery protection circuit are educed outside the battery box from a connection pile. The large capacity 12.8 V lithium battery mainly solves the alternative technology problem of the 12V lead-acid battery and the lithium ion battery is produced into a 12V standard battery and is compatible the working voltage range of the lead-acid battery.
Description
Technical field
The utility model relates to the group technology of lithium battery, is applicable to the lithium battery of using as fields such as electrokinetic cell, energy-storage batteries, particularly a kind of big capacity 12.8V lithium battery.
Background technology
In power and energy-storage battery application, what generally use at present is lead-acid battery.The voltage standard of monomer lead-acid battery is 2V, the actual lead-acid battery of making, and normally the mode that a plurality of batteries are together in series promptly adopts with 2V * N (N is the series connection quantity of monomer electricity core); Wherein, the most common with the 12V lead-acid battery of 2V * 6.Lead-acid battery with the most general electric bicycle of application is an example, and its nominal voltage is 12V, and nominal capacity is 10Ah or 20Ah.In the practical application, supporting 36V motor, the lead-acid battery of use are to adopt the directly mode of series connection of 3 groups of lead-acid batteries; Supporting 48V motor, use be the directly modes of series connection of 4 groups of lead-acid batteries, battery is placed in the battery case on the electric bicycle vehicle frame.Lead-acid battery is through 100 years of development, formed industry standard, capacitance grade from the type of service to the battery, corresponding agreement has all been arranged, made things convenient for the battery user to develop design so greatly, the later maintenance and the replacing of battery have also been made things convenient for simultaneously, for solid foundation has been established in the popularization and application of lead-acid battery.
In actual use, traditional lead-acid battery can access popularization and application widely, depends on the various advantages that lead-acid battery self exists:
1, the lead-acid battery production technology is simple: the technology of lead-acid battery itself is simple relatively, and through 100 years of development, the highly stable maturation of its technical matters, product reliability and stability can be controlled effectively.
2, lead-acid battery list pool-size size control easily, lead-acid battery is made easily owing to pole plate, can make the battery of different capabilities very easily, the capacity of cell can be from several Ah to an Ah more than hundred, even more jumbo battery, the lead-acid battery that is used for the electric bicycle field belongs to small-capacity cells, and the battery pack of formation does not need to carry out parallel connection and carries out the increase capacity, the battery pack of different voltage requests, only need connect gets final product.
3, single lead-acid battery voltage height: though the voltage of single lead-acid battery has only 2V, the lead-acid battery on the market mostly is directly at internal series-connection, directly constitute the battery of a 12V, compare other batteries, reach same voltage, then need connect again.
4, lead-acid battery is convenient in groups: for the high-voltage applications field, lead-acid battery only need simply be connected and be reached higher voltage, with electric bicycle common 36 or 48V nominal voltage, only needs the series connection of three to four Battery packs can reach requirement.More high-tension battery request, only battery how need be carried out connecting gets final product, and more jumbo battery carries out parallel connection after just need simply matching battery pack once and can solve.
5, lead-acid battery does not need peripheral circuit to manage: lead-acid battery is because the capacity consistency is better relatively, be combined to the battery pack of different voltages or different capabilities, can make up very easily, even and battery occurs certain unbalanced, lead-acid battery can reach battery balanced purpose by the mode that suitably overcharges.
6, technical standard is open unified: it is supporting that the producer of use battery can select for use different suppliers to carry out, the user also can use the identical lead-acid battery of any other factory to substitute in maintenance, the difference that exists is the battery of different factories has height on quality difference, the product of different plant produced can not occur substituting phenomenon, makes battery product have versatility.
7, lead-acid battery is with low cost: because the lead-acid battery production technology is relatively stable, technical threshold is low, be easy to produce, and the battery cost is low, makes battery applications be popularized easily.
Though there are many advantages in lead-acid battery, exist the shortcoming that itself can't overcome:
1, lead-acid battery is unfriendly to environment: because lead-acid battery contains heavy metal lead, in the production process of battery, in use and even the follow-up removal process, all inevitably have Environmental security hidden danger.
2, lead-acid battery cycle life is short, fills the mobile power field of putting deeply deeply for needs, and the life problems of lead-acid battery just highlights more.
3, the lead-acid battery volume and weight is all bigger, for move using inconvenience, at some weight is had the occasion of strict demand, lead-acid battery since weight exceed standard and can't use.
The above-mentioned shortcoming of lead-acid battery, serious restriction the further application of lead-acid battery, particularly along with in the global range to the reinforcement of environmental requirement, limited the application of lead-acid battery more.Along with the development of new technology, lithium-ion-power cell has obtained significant progress, and novel lithium-ion-power cell has the monomer voltage height, has extended cycle life, and is in light weight, good environmental protection, and alternative lead-acid battery progressively uses.
With respect to the advantage of lead-acid battery front, comparative analysis once lithium ion is applied to power or energy storage field, with use lead-acid battery to exist different:
1, lithium battery battery complex manufacturing: because complex manufacturing, uncontrollable relatively factor is greater than traditional lead-acid battery in the production, and the rate of finished products of lithium battery is lower relatively, and battery sorting difficulty in groups is greater than lead-acid battery, and technical threshold is higher relatively.
2, the lithium ion battery overall weight is less than lead-acid battery, and will be higher than lead-acid battery useful life.
3, lithium ion single can't directly produce the battery pack of 12V: the electric core that lithium ion battery is produced all is a monomer electricity core, under the regular situation, can't disposablely produce the battery of 12V.
4, lithium ion battery needs the process technology of specialty in groups: because the electric core that lithium ion battery is produced all is a monomer electricity core, can't in electric core manufacture process, connect to battery, electric core can only be connected, generally in the high voltage applications field, all need the production technology of specialty to make up processing, and need add the 5th power-supply management system.
Need power-supply management system when 5, lithium-ion-power cell uses: the characteristic of lithium ion battery can not overcharging resisting electricity and overdischarge; when lithium ion battery occurs overcharging or during overdischarge; gently then cause degradation of cell performance; fail safe hidden danger can appear in heavy responsibility; even safety issue such as blast appears, so the lithium ion battery group in use must the increase protective circuit.Simultaneously since the charge efficiency of lithium ion battery near 100%, when battery in use because battery self from factors such as power consumption are inconsistent, cause that the residual capacity of battery is inconsistent to be, cause the decline of battery pack whole volume, so, need to increase the equalizing charge of battery management system usually for the power lithium-ion battery group of many strings.Whole management system need realize by the electric power management circuit of particular design.
6, the battery combination technical standard does not have open characteristics: lithium-ion electric core encapsulation technology disunity causes the battery packages form to present diversification.See for example, the power lithium-ion battery that is used for the electric bicycle system at present, distinguish from the material that battery uses, have and adopt LiMn2O4 system, ternary system, also have system such as LiFePO4, the voltage of preceding two kinds of system cells is 3.7V, uses common 36V electric bicycle field, needs to adopt the structure of 10 Battery packs series connection, use 48V electric bicycle field, need to adopt the structure of 13 Battery packs series connection; The battery pack of the third LiFePO4 system, monomer battery voltage are 3.2V, are used for 36V electric bicycle field, need accomplish the structure of 12 Battery packs series connection, and use in the 48V electric motor car, need use 16 Battery packs and connect.The important difference of another one is, present lithium-ion-power cell, widely different on its outline packages, have and adopt column structure, have and adopt square structure, cause battery combination after, the shape of battery pack and volume difference can be bigger, it is unified that the face shaping of battery pack can't be accomplished, for the exchange of battery pack has brought bigger trouble, has influence on popularizing of lithium ion battery.
7, the lithium ion battery cost is higher than lead-acid battery, but can be longer than lead-acid battery far away useful life, and comprehensive use cost can be lower than lead-acid battery, and the weight of lithium ion battery itself is low simultaneously, can reduce the weight of car load greatly.
As seen from the above analysis, lithium ion battery has in light weight, long service life, advantage such as pollution-free, but and lead-acid battery is compared, when being applied to power or energy storage field, because the unified standard of cell package neither one, though shape and structural design to electric bicycle bring convenience, can realize diversified configuration design, but because apparent size shape disunity, the battery pack of different manufacturers can't mutual alternative, and that can give lithium-ion-power cell undoubtedly universally brings great obstacle.Simultaneously because lithium-ion-power cell is in practical combinations, not only relate to battery itself selecting with in groups, also to relate to the application of electronic circuit simultaneously, brought obstacle for the large-area popularization and application of lithium-ion-power cell undoubtedly.
During whole power battery or energy-storage battery are used at present, the influence that used for many years by the 12V lead-acid battery, industry standard on the 12V battery forms has come true, the every field that arrives in battery applications, having formed with 12V voltage is the series system of benchmark, for example uses the field of battery at automobile, has formed two voltage standards of 12V and 24V, all power consumption equipments all are to be benchmark with these two voltages, design; In the electric bicycle application, formed with 24,36, the 48V electric bicycle is the application standard of benchmark, its supporting motor, controller, light etc. are that the basis is designed with above-mentioned voltage standard all.And, in actual applications,, just have to consider the de facto standards of the scope that the voltage of conventional batteries is used because the effect of playing is progressively to substitute traditional lead-acid battery as up-and-coming youngster's lithium battery.Promptly, must be able to follow the existing standard of lead-acid battery 12V as up-and-coming youngster's lithium battery.In fact the lithium ion battery group occurs with the 12V voltage standard form of standard, can realize conventional battery pack connection in series-parallel, and then the application of lithium ion battery will be expanded greatly.
Lithium ion battery constitutes the technical feasibility analysis of 12V battery pack:
1, the voltage feasibility is inquired into: comprise the rated voltage of battery pack and two aspects of real work voltage of battery pack, needing can be compatible mutually with the lead-acid battery voltage range.The nominal voltage of traditional 12V lead-acid battery is 12V, and the real work voltage range generally arrives 14.5V at 10.5V.Novel ferric phosphate lithium cell, nominal voltage is 3.2V, operating voltage range is that 2.5V is to 3.65V, adopt ferric phosphate lithium cell to carry out four strings, the 12V lithium ion battery that constitutes, nominal voltage is 12.8V, the real work voltage range is that 10.0V is to 14.6V, be that the operating voltage range of 12.8V ferric phosphate lithium cell and the operating voltage range of 12V lead-acid battery match.Though rated voltage is higher than the rated voltage of lead-acid battery, but this nominal voltage can not bring inconvenience to the use of battery, the opposite discharge platform of 12.8V ferric phosphate lithium cell in actual use is higher than the 12V lead-acid battery, and the practical effect ferric phosphate lithium cell has better effect.Conclusion: use ferric phosphate lithium cell can reach requirement.
2, the 12V battery of lithium ion battery formation, the battery of same capability, its weight and volume requires to be not more than the weight and volume of lead-acid battery: this requirement is to be easy to reach, in fact, the ferric phosphate lithium cell and the lead-acid battery of same capability are compared, lithium ion battery volume and weight all can be less than the lead-acid battery of same capability, this requirement is easy to reach in actual the use.
3, lithium ion battery need solve the insurmountable environmental problem of lead-acid battery: the environmental friendliness of lithium ion battery, the problems referred to above can solve.
4, difference is, lithium ion battery need add the BMS system.Because lithium ion battery is than lead-acid battery " enervated ", when reality is used the 12V lithium ion battery, also need to increase the protection and the equalizing circuit of battery for battery, this part content will be explained in the back.
The utility model content
The purpose of this utility model is to provide a kind of big capacity 12.8V lithium battery, mainly solves the substitute technology problem of 12V lead-acid battery, and it is made into the standard cell of 12V with lithium ion battery, operating voltage range that can compatible lead-acid battery.
For solving the problems of the technologies described above, the utility model is achieved in that
A kind of big capacity 12.8V lithium battery is characterized in that: it is made of built-in series battery of external cell box, battery case and power-supply management system with lithium battery protection circuit; Described series battery is to be in series by the ferric phosphate lithium cell that four nominal voltages are 3.2V; The both positive and negative polarity of the battery pack that is connected with lithium battery protection circuit is drawn out to outside the battery case by wiring pile.
Described big capacity 12.8V lithium battery is characterized in that: described core with power-supply management system of lithium battery protection circuit be by master control IC with and peripheral circuit constitute testing circuit; This master control IC adopts S-8254, and its peripheral circuit comprises: the charging control switch of the turn-on and turn-off of the responsible control charge circuit that is made of CMOS1 and CMOS2 is made of the turn-on and turn-off discharge control switch of responsible charge circuit DMOS1 and DMOS2.
During use, electric current when IC is responsible for detecting the voltage of every battery and major loop discharge is at the voltage at resistance R 1 two ends, when the voltage at the voltage of each battery and resistance R 1 two ends during in normal range (NR), the MOSFET that discharges and recharges of BMS system all is in conducting state, and battery pack can be charged and discharge normally; The voltage that detects any battery as IC surpasses the overdischarge voltage that IC sets, or the discharge voltage that detects the R1 two ends surpass to set the overcurrent magnitude of voltage time, IC judges that battery pack overdischarge occurs or overcurrent occurred or short circuit, IC will turn-off discharge control metal-oxide-semiconductor DMOS1 and DMOS2, cut off discharge loop; When IC detected the overcharge voltage that the voltage of any battery surpass to set, IC judged that overcharging appears in battery, will turn-off charging control CMOS1 and CMOS2, the cut-out charge circuit.
Described big capacity 12.8V lithium battery, it is characterized in that: described battery pack can adopt the electric core of multiple shape to make, to the shape of original electric core without limits, both can adopt column type electricity core, also can adopt square box hat electricity core, can also adopt the electric core of square polymer encapsulated.
When the big capacity 12.8V of the utility model lithium battery uses, after the pairing of the 12.8V battery voltage of same model, can carry out connection in series-parallel and use.Promptly a plurality of 12.8V battery pack can be carried out parallel connection, reach the purpose that enlarges battery capacity, also battery pack can be connected, reach the purpose that improves cell voltage.
External cell box in the utility model structure adopts the shell of plastic material or other materials, shell shape adopts the square or rectangle structure of being convenient to put, the size of battery case can design according to the size of battery capacity, the both positive and negative polarity lead-out terminal of battery is by being placed on the wiring pile output of battery case loam cake.
The utlity model has following advantage.
1,12.8V lithium ion battery of the present utility model, environmental friendliness: have the advantage of good environmental protection, no matter be process of manufacture or use, so that last scrapping, this battery all has the advantage of environmental protection.
2,12.8V lithium ion battery of the present utility model, have good useful life: cycle life is higher than lead-acid battery from far away, and be 3 to 5 times of lead-acid battery actual life.
3,12.8V lithium ion battery of the present utility model, have good versatility: adopt unified modular housing, the difform lithium battery of the production of different manufacturers can be installed in the identical battery compartment, have good interchangeability, be convenient to the popularization and application of power lithium-ion battery.
4,12.8V lithium ion battery of the present utility model, the security performance height: battery pack of the present utility model inside is added with power-supply management system, occurs overcharging at battery, under the abnormal conditions such as overdischarge, overcurrent, short circuit, can effectively protect the safety of battery.
5,12.8V lithium ion battery of the present utility model, it is easy to use in groups to connect: this battery can directly be connected, and reaches voltage commonly used such as 24V, 36V commonly used, 48V.
6,12.8V lithium ion battery of the present utility model, being convenient to expansion uses: battery pack of the present utility model, can reach the purpose that enlarges battery capacity, as long as be encased in the larger sized battery case by the simple mode that increases batteries in parallel connection quantity.
7,12.8V lithium ion battery of the present utility model, the utility model is convenient to standardized production: because overall structure is the shell of use standard, internal cell has only four strings and is added with the BMS system.Be applied to the electric bicycle field, the 36V that the production process of battery pack of the present utility model is more traditional, 48V integrative-structure are simple, can carry out standardized production, simplify production process, reduce production costs.
8,12.8V lithium ion battery of the present utility model, easy to maintenance: as to use in 36V or the 48V application actual, if battery pack breaks down, only need get final product a battery altering occurring, and the battery pack of the compound mode of 36V or 48V integrative-structure breaks down, then whole battery group must be changed, compare and adopt the 12.8V battery pack, can greatly reduce the difficulty of maintenance and the expense of maintenance.
Description of drawings
Fig. 1 is the utility model 12.8V lithium ion battery theory diagram.
Fig. 2 is the line map of the utility model 12.8V lithium ion battery power-supply management system.
Fig. 3 is the utility model 12.8V lithium ion battery overall structure explosive view.
Fig. 4 is the outside drawing of the utility model 12.8V lithium ion battery.
Embodiment
The utility model reaches purpose of design by following design:
12.8V high-capacity lithium battery group of the present utility model has three parts and constitutes, and comprises the lithium battery group of four strings, the lithium battery management system, and battery case (comprising the positive and negative output electrode that is connected on the shell) constitutes.
As shown in Figure 1, constituted the theory diagram of 12.8V lithium ion battery.
As can be seen from Figure 1,12.8V lithium ion battery group mainly is made of two parts, promptly by B1, B2, four series-connected cells of B3, B4, form the battery pack part, and power-supply management system (BMS system) constitutes.Wherein P+, P-are the input and output port of 12.6V battery pack, by this port battery load are discharged, and perhaps use charger that battery is charged.
Fig. 2 is the schematic diagram of 12.6V lithium ion battery
Among Fig. 2, the 12.8V lithium ion battery is made of four series electrical core B1, B2, B3, B4.Entire circuit among the figure partly is the circuit diagram that constitutes batteries management system, the core of power-supply management system is by the master control IC (U1 among Fig. 2, this programme adopts S-8254) and peripheral circuit formation testing circuit, constitute charging control switch by CMOS1 and CMOS2, be responsible for the turn-on and turn-off of control charge circuit; Constitute discharge control switch by DMOS1 and DMOS2, be responsible for the turn-on and turn-off of charge circuit.Concrete working condition is, electric current when U1 is responsible for detecting the voltage of every battery and major loop discharge is at the voltage at resistance R 1 two ends, when the voltage at the voltage of each battery and resistance R 1 two ends during in normal range (NR), the MOSFET that discharges and recharges of BMS system all is in conducting state, and battery pack can be charged and discharge normally.The voltage that detects any battery as U1 surpasses the overdischarge voltage that U1 sets, or the discharge voltage that detects the R1 two ends surpass to set the overcurrent magnitude of voltage time, U1 judges that battery pack overdischarge occurs or overcurrent occurred or short circuit, U1 will turn-off discharge control metal-oxide-semiconductor DMOS1 and DMOS2, cut off discharge loop; When U1 detected the overcharge voltage that the voltage of any battery surpass to set, U1 judged that overcharging appears in battery, will turn-off charging control CMOS1 and CMOS2, the cut-out charge circuit.The BMS system overcharges and overdischarge and overcurrent, short circuit by the control battery, reaches the purpose of protection battery.
Fig. 3 constitutes 12.8V lithium ion battery overall structure explosive view.
Battery case is made of upper casing 3.1 and lower casing 3.6; wherein lower casing constitutes the main container of battery case; battery pack and power-supply management system with lithium battery protection circuit are placed in this battery case, after the last lower casing sealing, constitute a complete cell integrated (see figure 4).The user of battery only need be on wiring pile connects battery and discharges and recharges lead-in wire back battery pack and just directly can use.
12.8V lithium battery of the present utility model, battery case upper casing have the output both positive and negative polarity port of battery, among Fig. 3, are designated 3.2 position indications, i.e. the output cathode of battery, and this electrode is being connected internally to the positive wire of power-supply management system.Be designated 3.3 position indication, be the negative wire of battery, this electrode is being connected internally to the negative wire of power-supply management system.In order significantly to distinguish the both positive and negative polarity of output port, next door at the both positive and negative polarity output port of loam cake, be added with "+" of both positive and negative polarity, the symbol of "-" respectively, and the red glue of anodal port below use fixedly positive terminal identifies, the fixedly negative terminal line identifier of going forward side by side of black glue is used in negative terminal below, the warning function of multiple sign connection error occurs in order to prevent the user.Lead-out terminal uses bolted, can conveniently use.
Shown in 3.4 among Fig. 3, the ferric phosphate lithium cell of four series connection being adorned for battery case inside (is the example that adopts rectangular cell among the figure, also can adopt cylindrical battery to carry out the connection in series-parallel combination) connect, be about to battery plus-negative plate successively both positive and negative polarity be in series, battery pack after the series connection, reach the rated voltage that rated voltage is 12.8V, the operating voltage range of the battery pack after the series connection is to 14.6V at 10V, the operating voltage range of operating voltage range and lead-acid battery matches, and has constituted the new type lithium ion battery that can substitute lead-acid battery.
Shown in 3.5 among Fig. 3, wiring board for the power-supply management system of lithium ion battery, the element of Fig. 2 is welded on the wiring board, wiring board links to each other with battery pack by 5 lines, line comprises total positive pole and negative pole line, and and the line of the mid point of per two series-connected cells, can carry out voltage sampling to the electric core of each series connection, the switching control section of power-supply management system connects the negative pole of battery to four total electric core, and by the power-supply management system internal switch, be wired to the output negative pole 3.3 of battery case, anodal part is wired to the output 3.2 of battery case equally, constitutes the output that discharges and recharges of whole battery group.
Fig. 4 is the figure of 12.8V battery case overall appearance, and its volume size can be compatible with the lead-acid battery box, also can adjust accordingly according to the amount of capacity of battery.
Preferred embodiment only of the present utility model in sum is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be technology category of the present utility model.
Claims (2)
1. one kind big capacity 12.8V lithium battery is characterized in that: it is made of built-in series battery of external cell box, battery case and power-supply management system with lithium battery protection circuit; Described series battery is to be in series by the ferric phosphate lithium cell that four nominal voltages are 3.2V; The both positive and negative polarity of the battery pack that is connected with lithium battery protection circuit is drawn out to outside the battery case by wiring pile.
2. big capacity 12.8V lithium battery according to claim 1 is characterized in that: described core with power-supply management system of lithium battery protection circuit be by master control IC with and peripheral circuit constitute testing circuit; This master control IC adopts S-8254, and its peripheral circuit comprises: the charging control switch of the turn-on and turn-off of the responsible control charge circuit that is made of CMOS1 and CMOS2 is made of the turn-on and turn-off discharge control switch of responsible charge circuit DMOS1 and DMOS2.
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| CN201020505553XU CN201758159U (en) | 2010-08-25 | 2010-08-25 | Large capacity 12.8 V lithium battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201020505553XU CN201758159U (en) | 2010-08-25 | 2010-08-25 | Large capacity 12.8 V lithium battery |
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| CN201758159U true CN201758159U (en) | 2011-03-09 |
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| CN201020505553XU Expired - Fee Related CN201758159U (en) | 2010-08-25 | 2010-08-25 | Large capacity 12.8 V lithium battery |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000937A (en) * | 2012-11-26 | 2013-03-27 | 精功镇江汽车制造有限公司 | Lithium iron phosphate battery of pure electric vehicle |
| CN103022549A (en) * | 2012-09-28 | 2013-04-03 | 昆山美好新能源科技有限公司 | Lithium battery |
| CN103579701A (en) * | 2013-11-12 | 2014-02-12 | 惠州市蓝微电子有限公司 | Energy-storage lithium battery parallel-connection capacity-expansion circuit and energy-storage lithium battery parallel-connection capacity-expansion voltage control method |
| CN106671909A (en) * | 2016-06-30 | 2017-05-17 | 深圳市华思旭科技有限公司 | battery clip action executing method and device |
| CN106877456A (en) * | 2017-04-10 | 2017-06-20 | 王振 | A kind of electric vehicle power sources system |
-
2010
- 2010-08-25 CN CN201020505553XU patent/CN201758159U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022549A (en) * | 2012-09-28 | 2013-04-03 | 昆山美好新能源科技有限公司 | Lithium battery |
| CN103000937A (en) * | 2012-11-26 | 2013-03-27 | 精功镇江汽车制造有限公司 | Lithium iron phosphate battery of pure electric vehicle |
| CN103579701A (en) * | 2013-11-12 | 2014-02-12 | 惠州市蓝微电子有限公司 | Energy-storage lithium battery parallel-connection capacity-expansion circuit and energy-storage lithium battery parallel-connection capacity-expansion voltage control method |
| CN106671909A (en) * | 2016-06-30 | 2017-05-17 | 深圳市华思旭科技有限公司 | battery clip action executing method and device |
| CN106877456A (en) * | 2017-04-10 | 2017-06-20 | 王振 | A kind of electric vehicle power sources system |
| CN106877456B (en) * | 2017-04-10 | 2023-11-14 | 王振 | Electric vehicle power supply system |
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