CN201860140U - Rechargeable battery - Google Patents
Rechargeable battery Download PDFInfo
- Publication number
- CN201860140U CN201860140U CN2010205862577U CN201020586257U CN201860140U CN 201860140 U CN201860140 U CN 201860140U CN 2010205862577 U CN2010205862577 U CN 2010205862577U CN 201020586257 U CN201020586257 U CN 201020586257U CN 201860140 U CN201860140 U CN 201860140U
- Authority
- CN
- China
- Prior art keywords
- battery
- module
- voltage
- rechargeable battery
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a rechargeable battery, which comprises at least two battery modules and a charging control module. The battery modules are connected in series, the charging control module is connected with a main charging loop of the rechargeable battery, each battery module comprises a battery body, a battery protecting system and a battery voltage clamping balancing system, the battery protecting systems are connected with the battery bodies, the battery voltage clamping balancing systems are connected with the battery bodies and the charging control module and used for limiting charging voltage of the battery bodies, so that the charging voltage of each battery body is equal to the charging voltage of the battery bodies in other battery modules of the rechargeable battery and smaller than over-charging voltage of the corresponding battery protecting system, and the charging control module controls disconnection of the main charging loop according to voltage limiting processing results of the battery voltage clamping balancing systems of the battery modules. The rechargeable battery can sufficiently use charging capacity of all battery modules, and avoids damage to capacity and the service life of rechargeable batteries.
Description
Technical field
The present invention relates to battery technology, relate in particular to a kind of rechargeable battery.
Background technology
In order to satisfy high voltage and jumbo application demand, existing rechargeable battery is general to adopt the form with the multiple batteries series connection to realize.
Because the difference on the characteristics such as self-discharge of battery, can cause the rechargeable battery of same capability, its residual capacity was significantly different when in use discharge finished, the difference of this capacity, be that the unbalanced meeting of capacity strengthens along with the increase of access times, this unbalanced, especially obvious for the rechargeable battery that the series connection joint number is a lot, harm also is great.In the prior art; every batteries in the rechargeable battery all is provided with battery protection system; this battery protection system is connected with the battery body of this batteries; the output of this battery protection system is connected to the main charging and discharging circuit of rechargeable battery; thereby can occur overcharging at battery, during situation such as overdischarge and overcurrent, the main charging and discharging circuit of cutting off rechargeable battery be with the protection rechargeable battery.Specifically; when charging; the bigger battery of discharge last time back residual capacity is full of earlier in each batteries of series connection, reaches maximum charging voltage, i.e. the overcharged voltage of rechargeable battery; be the whole rechargeable battery of protection this moment; over-charge protective module in the battery protection system will be cut off the charge circuit of whole rechargeable battery, and the less battery of discharge back residual capacity last time this moment also is not full of and just interrupts having charged, thereby in use; when promptly discharging, this battery discharge that is not full of still less.After so repeatedly discharging and recharging, the battery of the each discharge back capacity minimum in the rechargeable battery had lost efficacy soon, thereby finally caused whole rechargeable battery to lose efficacy.
Therefore, existing rechargeable battery is in charge and discharge process, and each capacity that saves series-connected cell is not fully utilized, thereby has influenced the performance of whole rechargeable battery, has shortened the useful life of rechargeable battery.
Summary of the invention
The invention provides a kind of rechargeable battery, make each battery module of series connection reach balanced consistent charging voltage,, avoid the capacity of rechargeable battery and useful life impaired to make full use of the charging capacity of each battery module in the rechargeable battery.
The invention provides a kind of rechargeable battery, comprise at least two battery modules that are connected in series and the charge control module that is connected with the main charge circuit of described rechargeable battery, each battery module comprises battery body, the battery protection system that is connected with this battery body and the battery pincers pressure equalizing system that is connected with described charge control module with this battery body; Described battery pincers are pressed equalizing system, being used for that the charging voltage of this battery body is carried out pressure limiting handles, so that the charging voltage of the battery body of other each battery module equates in the charging voltage of this battery body and the described rechargeable battery, and described charging voltage is less than the overcharged voltage of described battery protection system; Described charge control module is used for the pressure limiting result according to the battery pincers pressure equalizing system of each battery module, controls described main charge circuit and disconnects.
Rechargeable battery of the present invention presses equalizing system can make each battery module of series connection reach balanced consistent charging voltage by the battery pincers, guarantee that each battery module is full of as far as possible in the rechargeable battery, thereby can make full use of the capacity of each battery module in the rechargeable battery, avoid the capacity of rechargeable battery and useful life impaired; In time cut off main charge circuit in the time of can guaranteeing that rechargeable battery is full of by charge control module and stop charging, thereby can protect rechargeable battery.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Figure 1A is the structural representation of rechargeable battery embodiment one of the present invention;
Figure 1B is the structural representation of battery module among the rechargeable battery embodiment one of the present invention;
Fig. 2 presses the circuit structure diagram of equalizing system for battery pincers among the rechargeable battery embodiment two of the present invention;
Fig. 3 is the structural representation of battery module among the rechargeable battery embodiment three of the present invention;
Fig. 4 is the circuit structure diagram of battery maintenance system among the rechargeable battery embodiment four of the present invention;
Fig. 5 is the structural representation of battery module among the rechargeable battery embodiment five of the present invention;
Fig. 6 is the structural representation of overheat protector module among Fig. 5;
Fig. 7 is the structural representation of battery module among the rechargeable battery embodiment six of the present invention;
Fig. 8 is the structural representation of anti-bulge protection module among Fig. 7.
Description of reference numerals:
1: battery module; 2: charge control module;
10: battery body; 20: battery protection system;
30: the battery pincers are pressed equalizing system; 40: the battery maintenance system;
50: the overheat protector module; 60: anti-bulge protection module;
301: the first voltage comparators; 302: shunt resistance;
303: control switch; 304: the first reference power sources;
305: signal detector; 401: the battery maintenance control module;
402: transformer; 403: diode;
501: temperature sensor; 502: hysteresis comparator;
503: the first switches; 504: temperature threshold is provided with the unit;
601: pressure sensor; 602: the second voltage comparators;
603: second switch; 604: the second reference power sources.
Embodiment
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Figure 1A is the structural representation of rechargeable battery embodiment one of the present invention; The structural representation of battery module among Figure 1B rechargeable battery embodiment one of the present invention.Shown in Figure 1A and Figure 1B, rechargeable battery of the present invention, comprise at least two battery modules that are connected in series 1 and the charge control module 2 that is connected with the main charge circuit (not shown) of this rechargeable battery, each battery module 1 comprises battery body 10, the battery protection system 20 that is connected with this battery body 10 and the battery pincers pressure equalizing system 30 that is connected with charge control module 2 with this battery body 10; The battery pincers are pressed equalizing system 30, being used for that the charging voltage of this battery body is carried out pressure limiting handles, so that the charging voltage of the battery body of other each battery module equates in the charging voltage of this battery body and this rechargeable battery, and this charging voltage is less than the overcharged voltage of battery protection system 20; Charge control module 2 is used for the pressure limiting result according to the battery pincers pressure equalizing system 30 of each battery module 1, controls main charge circuit and disconnects.
Specifically; in the prior art; battery protection system can comprise and put protection module, over-charge protective module and overcurrent protection module in the battery module of rechargeable battery; the output of this battery protection system is connected to the main charging and discharging circuit of rechargeable battery; be used for occurring overcharging, cross main charge circuit or the main discharge circuit putting or in time cut off main charging and discharging circuit during overcurrent, thereby play the safeguard protection effect to rechargeable battery in can and using at battery charge and discharge process at rechargeable battery.
Battery module in the present embodiment comprises above-mentioned battery protection system; also comprise battery pincers pressure equalizing system 30 simultaneously; the battery pincers press equalizing system 30 by being controlled to be the voltage that battery body 10 charges; make that each battery module 1 reaches same predefined charging voltage in the rechargeable battery; in actual the use; this charging voltage is slightly less than the overcharged voltage of rechargeable battery, thereby can guarantee that rechargeable battery is full of as far as possible.When charging; the voltage that can limit the bigger battery body two ends of back residual capacity of discharging last time rises so high; and owing to the overcharged voltage of this charging voltage less than battery protection system 20; battery protection system 20 can just not cut off main charge circuit when battery body 10 is not full of; therefore the less battery body of discharge last time back residual capacity can continue charging; voltage up to two ends reaches this predefined same charging voltage just can stop to continue charging; when each battery module all reaches this same charging voltage in the rechargeable battery; each battery module can both be full of as far as possible; thereby when each discharge; rechargeable battery can be exported the big electric weight of trying one's best, thereby does not suffer a loss the useful life that guarantees rechargeable battery.Charge control module 2 in the present embodiment, can press the pressure limiting result of equalizing system 30 according to the battery pincers of above-mentioned each battery module 1, be that whether each battery module all reaches same default charging voltage in the rechargeable battery, if all reach and then control main charge circuit disconnection, stop to continue charging, guarantee the safety of rechargeable battery, otherwise do not cut off main charge circuit that then rechargeable battery still can continue charging.
Present embodiment presses equalizing system can make each battery module of series connection reach balanced consistent charging voltage by the battery pincers; guarantee that each battery module is full of as far as possible in the rechargeable battery; thereby can make full use of the capacity of each battery module in the rechargeable battery; avoid the capacity and the useful life of rechargeable battery impaired; can in time cut off main charge circuit when making that by charge control module rechargeable battery is full of simultaneously and stop charging, thereby can protect rechargeable battery.
Fig. 2 presses the circuit structure diagram of equalizing system for battery pincers among the rechargeable battery embodiment two of the present invention, as shown in Figure 2, battery pincers in the present embodiment press equalizing system to comprise first voltage comparator 301, shunt resistance 302, control switch 303 and signal detector 305, the comparison input of first voltage comparator 301 is connected with the voltage output end of battery body 10 and the voltage output end of first reference power source 304 respectively, the output of first voltage comparator 301 is connected with control switch 303, and control switch 303 makes shunt resistance 302 and battery body 10 form the closed-loop path under closure state; Signal detector 305 is connected with the branch road at shunt resistance 302 places in this closed-loop path; Signal detector 305, whether the electrical characteristic parameter average that is used to detect on the branch road at shunt resistance 302 places surpasses predetermined threshold value, and sends first signal to charge control module 2 when surpassing; Charge control module 2 specifically is used for controlling main charge circuit and disconnecting behind first signal that receives each battery module transmission.
In concrete the application, the voltage output end of battery body 10 can connect the in-phase end of first voltage comparator 301, the voltage output end of first reference power source 304 connects the end of oppisite phase of first voltage comparator 301, the output of first voltage comparator 301 connects the control end of control switch 303, the shunt access of control shunt resistance 302.Specifically, when the voltage of battery body 10 surpassed the magnitude of voltage Ucv that presets of first reference power source 304, magnitude of voltage Ucv can choose the overcharged voltage that approaches rechargeable battery, but less than overcharged voltage.First voltage comparator, 301 output high level, make control switch 303 closed shunt access, be that shunt resistance 302 forms the closed-loop path with battery body 10, when being connected with the constant-current source (not shown) of external charging, shunt resistance 302 just can be shunted battery body 10, the one part of current of dividing the constant-current source that falls to charge, just have output signal in the signal detector 305 this moment, because the influence of the internal resistance of battery body 10, the voltage of shunting back battery body can reduce, thereby forms a negative feedback process.Degenerative result is; Under the enough little situation of shunt resistance 302, the voltage of battery body 10 will be stabilized in Ucv.If each battery pincers presses equalizing system to select identical Ucv in the rechargeable battery, then can guarantee when charging is finished the charging voltage of each battery body unanimity of keeping in balance.Because each battery module is adopted the degenerative shunt circuit of formation, make the little battery module of capacity also can under bigger electric current, charge in the present embodiment,, improve charge efficiency so present embodiment can also improve the charging current of rechargeable battery.Be arranged in the present embodiment that signal detector 305 can be current sensor, voltage sensor or temperature sensor detecting elements such as (can be arranged on the shunt resistance) in the shunt access at shunt resistance 302 places, it detects the electrical characteristics signal in the diverter branch at shunt resistance place.In all battery pincers pressure equalizing systems 30, all detect signal; and this signal average is during all above predetermined threshold value; each signal detector 305 all sends first signal to charge control module 2; the voltage that all battery body two ends are described all reaches Ucv; this moment, all battery bodies 10 all were full of; charge control module 2 stops to continue to the rechargeable battery charging protection rechargeable battery according to the main charge circuit of the first signal cut rechargeable battery of each battery module 1 transmission that receives.In concrete the enforcement, one logical door can be set in the charge control module 2, when the battery pincers in the battery module are pressed equalizing system 30 outputs first signal, logical door input high level signal, the battery of each battery module pincers press equalizing system all to export first signal in rechargeable battery, and then the logical door can be exported the high level signal of the main charge circuit that cuts off rechargeable battery.
Present embodiment is on the basis of the technique effect that reaches embodiment one, further by adopting first voltage comparator control shunting circuit, form negative feedback, make the charging voltage of each battery body keep in balance, adopt the battery pincers of foregoing circuit structure to press equalizing system can improve the electric current of charging circuit, improve charge efficiency, the maximum charge ability of equalization of rechargeable battery can reach more than the 5A.
Fig. 3 is the structural representation of each battery module among the rechargeable battery embodiment three of the present invention, as shown in Figure 3, on the basis of the foregoing description, battery module in the present embodiment three also further comprises battery maintenance system 40, be used to the battery body 10 in this battery module 1 to charge separately, battery maintenance system 40 is connected with battery body 10 in this battery module 1.
Present embodiment further can also carry out performance maintenance to impaired battery module by the battery maintenance system is set on the basis of the technique effect that reaches the foregoing description.
Fig. 4 is the circuit structure diagram of battery maintenance system among the rechargeable battery embodiment four of the present invention, as shown in Figure 4, battery maintenance system 40 in the present embodiment comprises battery maintenance control module 401 and sub-charge circuit, battery maintenance control module 401 is connected with battery body 10, sub-charge circuit comprises transformer 402 and diode 403, two input+P of two outputs of battery maintenance control module 401 and transformer 402 are connected with-P, and two outputs of transformer 402 are connected with battery body 10 by diode 403.The output of transformer 402 is connected respectively to each sub-charge circuit.Each battery body 10 is provided a loop of charging separately, and the voltage of all battery bodies 10 drawn from root, feed back in the battery maintenance control module 401, if the loss of one of them battery body 10 is serious, voltage does not reach the average voltage of whole rechargeable battery, then this battery body 10 can be by feeding back to battery maintenance control module 401 with this low-voltage signal, battery maintenance control module 401 output voltages, charge to this battery body 10 by sub-charge circuit to sub-charge circuit by transformer coupled.Owing to all go here and there the diode 403 of unidirectional conducting in each sub-charge circuit, thus only there is the sub-charge circuit at impaired battery body 10 places can conducting, and the sub-charge circuit at intact battery body 10 places can conducting.Thereby so just can carry out independent maintenance and reparation to a certain joint or more piece defective cell.
Present embodiment can be safeguarded separately single or multiple defective cell in the rechargeable battery separately respectively and be repaired by the battery maintenance system that is provided with, thereby has guaranteed the whole service life of rechargeable battery.
Fig. 5 is the structural representation of each battery module among the rechargeable battery embodiment five of the present invention; Fig. 6 is the structural representation of overheat protector module among Fig. 5.As shown in Figure 5 and Figure 6; on the basis of above-mentioned arbitrary embodiment; battery module 1 can also comprise the overheat protector module 50 that is connected with battery body 10 in this battery module 1; be used for temperature according to the battery body 10 of this battery module 1, control rechargeable battery main charging and discharging circuit unlatching or close.Because rechargeable battery in use heating constantly may cause spontaneous combustion or blast,, can guarantee the safety of whole rechargeable battery by each battery body in the rechargeable battery being carried out temperature monitoring control.Specifically, overheat protector module 50 comprises that temperature sensor 501, hysteresis comparator 502 and first switch 503 and temperature threshold are provided with unit 504.First switch 503 is used to open or the main charging and discharging circuit of charge closing battery, temperature sensor 501 is set directly on each battery body 10, can directly detect the temperature of each battery body 10 by temperature sensor 501, can be according to the temperature output correspondent voltage that detects, the detection output voltage of temperature sensor 501 is input to the in-phase end of hysteresis comparator 502, temperature threshold is provided with unit 504 temperature threshold is set, and this temperature threshold signal is input to the end of oppisite phase of hysteresis comparator 502, the output of hysteresis comparator 502 is connected with the control end of first switch 503.Wherein temperature threshold comprises first temperature threshold and second temperature threshold, and first temperature threshold is greater than second temperature threshold, and first temperature threshold and second temperature threshold be two threshold voltages of corresponding hysteresis comparator 502 respectively.When battery body 10 temperature surpassed first temperature threshold, hysteresis comparator 502 outputs disconnected main charging and discharging circuit by first switch 503, stop rechargeable battery and discharge and recharge, to avoid the overheated safety problem that occurs of battery body; When battery temperature is lower than second temperature threshold; hysteresis comparator 502 outputs are by first switch, 503 closed main charging and discharging circuit; can restart rechargeable battery and discharge and recharge, the overheat protector effect of the overheat protector module in the present embodiment is particularly useful in the 18650 electric core batteries.
Present embodiment further overcomes the rechargeable battery easily burning that causes of heating even the problem of blast by the overheat protector module is set on the basis of the technique effect of the foregoing description, guarantee the safe handling of rechargeable battery.
Fig. 7 is the structural representation of each battery module among the rechargeable battery embodiment six of the present invention; Fig. 8 is the structural representation of anti-bulge protection module among Fig. 7.As shown in Figure 7 and Figure 8; on the basis of above-mentioned arbitrary embodiment; the battery module 1 of present embodiment can also comprise the anti-bulge protection module 60 that is connected with the battery body 10 of this battery module 1; anti-bulge protection module 60 is used for the deformation degree according to this battery body 10, the unlatching of the main charging and discharging circuit of control rechargeable battery or close.Because behind the rechargeable battery process several times cycle charge-discharge, the gas that inner chemical material reaction produces can cause bulge phenomenon, in bulge is not clearly the time, can also continue to discharge and recharge, when bulge apparent in view, continue to discharge and recharge the safety problem that may cause the rechargeable battery blast, so reply bulge deformation degree is carried out Monitoring and Controlling.Specifically, anti-bulge protection module 60 can comprise pressure sensor 601, second voltage comparator 602, second switch 603 and second reference power source 604, and second switch 603 is used to open or the main charging and discharging circuit of charge closing battery.The output of pressure sensor 601 connects the in-phase end of second voltage comparator 602, and the voltage output end of second reference power source 604 connects the end of oppisite phase of second voltage comparator 602, and the output of second voltage comparator 602 is connected to the control end of second switch 603.Wherein pressure sensor 601 can adopt the pressure-strain sheet, can be set directly on the battery body 10, when the output voltage of pressure-strain sheet is lower than the magnitude of voltage Uref that presets of second reference power source, be that battery body 10 does not have bulge or bulge not serious, the main charging and discharging circuit closure of second switch 603 controls can continue to discharge and recharge; When the output voltage of pressure-strain sheet surpasses Uref; it is the serious bulge of battery; inside battery contains a large amount of gases; this moment, rechargeable battery can not continue to discharge and recharge again; the output control second switch 603 of second voltage comparator 602 disconnects main charging and discharging circuit; stop to discharge and recharge of rechargeable battery, thereby avoid contingent safety problem, the protective effect of the anti-bulge protection module in the present embodiment is particularly useful in the LiFePO4 soft-package battery.
Present embodiment has further improved the fail safe of using rechargeable battery by the problem of the blast that anti-bulge protection module is set can prevents rechargeable battery and may cause because gas buildup causes serious bulge.
Battery body in the foregoing description can be the lithium ion battery body, and its electric voltage equalization, battery maintenance, overheat protector and anti-bulge protection philosophy and the technique effect that is reached are equally applicable to the lithium ion battery body, do not repeat them here.
It should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.
Claims (9)
1. rechargeable battery, its feature: at least two battery modules that are connected in series and the charge control module that is connected with the main charge circuit of described rechargeable battery, each battery module comprise battery body, the battery protection system that is connected with this battery body and the battery pincers pressure equalizing system that is connected with described charge control module with this battery body;
Described battery pincers are pressed equalizing system, being used for that the charging voltage of this battery body is carried out pressure limiting handles, so that the charging voltage of the battery body of other each battery module equates in the charging voltage of this battery body and the described rechargeable battery, and described charging voltage is less than the overcharged voltage of described battery protection system;
Described charge control module is used for the pressure limiting result according to the battery pincers pressure equalizing system of each battery module, controls described main charge circuit and disconnects.
2. rechargeable battery according to claim 1, it is characterized in that, described battery pincers press equalizing system to comprise first voltage comparator, shunt resistance, control switch and signal detector, two inputs of described first voltage comparator are connected with the voltage output end of described battery body and the voltage output end of first reference power source respectively, the output of described first voltage comparator is connected with described control switch, described control switch makes described shunt resistance and described battery body form the closed-loop path under closure state, and described signal detector is connected with the branch road at shunt resistance place in the described closed-loop path;
Described signal detector, whether the electrical characteristic parameter average that is used to detect on the branch road at described shunt resistance place surpasses predetermined threshold value, and sends first signal to described charge control module when surpassing;
Described charge control module specifically is used for behind first signal that receives each battery module transmission, controls described main charge circuit and disconnects.
3. rechargeable battery according to claim 1 is characterized in that, each battery module also comprises:
The battery maintenance system that is connected with battery body in this battery module is used to the battery body in this battery module to charge separately.
4. rechargeable battery according to claim 3, it is characterized in that, described battery maintenance system comprises battery maintenance control module and sub-charge circuit, described battery maintenance control module is connected with described battery body, described sub-charge circuit comprises transformer and diode, two outputs of described battery maintenance control module are connected with two inputs of described transformer, and two outputs of described transformer are connected with described battery body by described diode.
5. rechargeable battery according to claim 1 is characterized in that, each battery module also comprises:
The overheat protector module that is connected with battery body in this battery module is used for the temperature according to this battery body, control described rechargeable battery main charging and discharging circuit unlatching or close.
6. rechargeable battery according to claim 5; it is characterized in that; described overheat protector module comprises temperature sensor, hysteresis comparator and is used to open or close first switch of the described main charging and discharging circuit of described rechargeable battery; the output of described temperature sensor is connected with an input of described hysteresis comparator; temperature threshold is provided with the unit and is connected with another input of described hysteresis comparator, and the output of described hysteresis comparator is connected with the control end of described first switch.
7. rechargeable battery according to claim 1 is characterized in that, each battery module also comprises:
The anti-bulge protection module that is connected with battery body in this battery module is used for the deformation degree according to this battery body, control described rechargeable battery main charging and discharging circuit unlatching or close.
8. rechargeable battery according to claim 7; it is characterized in that; described anti-bulge protection module comprises pressure sensor, second voltage comparator and is used to open or close the second switch of the described main charging and discharging circuit of described rechargeable battery; the output of described pressure sensor is connected with an input of described second voltage comparator; the voltage output end of second reference power source is connected with another input of described second voltage comparator, and the output of described second voltage comparator is connected with the control end of described second switch.
9. according to the described rechargeable battery of the arbitrary claim of claim 1 ~ 8, it is characterized in that described battery body is the lithium ion battery body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205862577U CN201860140U (en) | 2010-11-02 | 2010-11-02 | Rechargeable battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205862577U CN201860140U (en) | 2010-11-02 | 2010-11-02 | Rechargeable battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201860140U true CN201860140U (en) | 2011-06-08 |
Family
ID=44105939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205862577U Expired - Fee Related CN201860140U (en) | 2010-11-02 | 2010-11-02 | Rechargeable battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201860140U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872741A (en) * | 2014-04-02 | 2014-06-18 | 芜湖三木电子科技有限公司 | Lithium battery management device based on clamping voltage balance |
| CN112154567A (en) * | 2019-01-18 | 2020-12-29 | 株式会社Lg化学 | Battery management apparatus and method |
-
2010
- 2010-11-02 CN CN2010205862577U patent/CN201860140U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872741A (en) * | 2014-04-02 | 2014-06-18 | 芜湖三木电子科技有限公司 | Lithium battery management device based on clamping voltage balance |
| CN112154567A (en) * | 2019-01-18 | 2020-12-29 | 株式会社Lg化学 | Battery management apparatus and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102377198A (en) | Rechargeable battery | |
| CN204407869U (en) | Lithium battery secondary overvoltage protective circuit and lithium battery protection circuit | |
| CN101267122A (en) | Charging and discharging protection circuit for multiple serial lithium battery | |
| EP2654175A1 (en) | Battery protection device and method for dc power supply | |
| CN204668925U (en) | There is the lithium battery protection circuit of overtemperature protection | |
| CN104064827B (en) | Nickel-metal hydride battery pack with safety protection system | |
| CN102005794B (en) | Battery pack charging management system and method | |
| CN101436774A (en) | Protective system for lithium ion battery | |
| CN203377638U (en) | Switching-type battery pack charging discharging protection equalization circuit | |
| WO2011122696A1 (en) | Battery pack and power tool using the same | |
| CN103701162A (en) | Battery management system | |
| CN103683439A (en) | System and method for controlling charge of lithium battery pack | |
| CN102545322B (en) | Battery module, power supply system and battery power supply control method | |
| EP3160002B1 (en) | Active equalizing charging device | |
| CN108432084A (en) | Balance charge/discharge method of serial battery group and circuit, direct current isolated buck circuit | |
| CN103280858A (en) | Charging method preventing overcharging of cells of lithium battery pack | |
| CN202405763U (en) | Over-discharge protection circuit and battery utilizing same | |
| CN201860140U (en) | Rechargeable battery | |
| CN102122812A (en) | Over-charging protective device for rechargeable battery | |
| EP3176866B1 (en) | Resonating lithium battery device with damping function | |
| CN201199534Y (en) | Lithium ion battery package and cascade, parallel connection application circuit thereof | |
| CN102299536A (en) | Anti-explosion and intrinsic safe lithium ion storage battery power supply management system for mine | |
| CN201178321Y (en) | Charging and discharging protection circuit of multiple lithium batteries connected in series | |
| CN111181205A (en) | Parallel high-voltage control box of battery system | |
| CN2938522Y (en) | Overload protection circuit of power lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20131102 |