CN205509600U - Novel double -deck balanced control of lithium cell group device - Google Patents

Novel double -deck balanced control of lithium cell group device Download PDF

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Publication number
CN205509600U
CN205509600U CN201620316977.9U CN201620316977U CN205509600U CN 205509600 U CN205509600 U CN 205509600U CN 201620316977 U CN201620316977 U CN 201620316977U CN 205509600 U CN205509600 U CN 205509600U
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battery
circuit
cell
lithium battery
resistance
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CN201620316977.9U
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阳小明
万洪
田野
杜晓风
雍明阳
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Xihua University
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Xihua University
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Abstract

The embodiment of the utility model discloses novel double -deck balanced control of lithium cell group device, including battery status observation circuit, battery management controller and the balanced control circuit who connects gradually, the battery status observation circuit will be monitored data transmission and given the battery management controller, the battery management controller will data are sent control signal and are given after carrying out algorithm analysis balanced control circuit realizes energy in the lithium cell group between battery cell is balanced. And simultaneously, balanced control circuit includes bottom inductance equalizer circuit and top layer electric capacity equalizer circuit, bottom inductance equalizer circuit, be used for the energy transduction between lithium cell inter block battery cell, top layer electric capacity equalizer circuit, be used for the equilibrium between the lithium cell inter block cell, this embodiment adopts upper and lower layer equalizer circuit coordinated actions, realizes between two wantonly battery cell in the lithium cell group and the developments transfer of energy between cell, has improved entire system's balanced efficiency.

Description

A kind of novel lithium battery group bilayer equalising control device
Technical field
This utility model relates to battery pack balancing technical field, particularly relates to a kind of novel lithium battery group bilayer Balance route Device.
Background technology
The difficult problem faced by solution energy crisis and environmental pollution the two countries in the world, new-energy automobile is in this background Under arise at the historic moment, wherein electric automobile is little owing to having running noise, discharge used heat few, simple in construction, working service side Just etc. series of advantages is especially paid close attention to by people.But lithium battery group monomer battery voltage and capacity cannot meet at all People are for the performance requirement of electric automobile, it is therefore desirable to connected and provide energy for set of cells for electric automobile.
But the discordance between cell the most generally exists in lithium battery group, the parameters of lithium battery is in production process In there is different size of difference, these differences show as lithium battery internal resistance, capacity, open-circuit voltage and charging/discharging voltage Platform etc. inconsistent.Along with lithium battery the increasing of discharge and recharge number of times in actual motion, and temperature, self discharge etc. are each The impact of the factor of kind, these differences will constantly expand so that the performance difference between lithium battery cell is increasing, causes In set of cells, cell overcharges, crosses and put phenomenon, and in set of cells, the rate of decay of each cell is inconsistent, series connection lithium electricity The capacity of pond group is determined by organizing interior minimum cell capacity, therefore once has certain battery deep discharge, whole electricity occur Pond group is necessary for quitting work, and equally, once has certain battery to occur overcharging, and charging process also to stop immediately, The service life ultimately resulting in set of cells drastically shortens.
For the output voltage equilibrium of joint lithium battery each in realizing lithium battery group, in prior art, generally single in set of cells On body battery, parallel resistance realizes electric voltage equalization with consumed energy or by Control variable connector.But use The problem that the mode of parallel resistance exists energy dissipation and poor radiation;Use relay network balancing technique, need transformation Each cell is individually charged by the Secondary Winding of device, and the concordance of Secondary Winding needs strictly to control, but inductor winding Concordance be very difficult to control, and equalize inefficient, be not suitable for fast uniform during large current charge, When adjacent cell voltage difference is the least, time for balance will be the longest.
Utility model content
This utility model embodiment provides a kind of novel lithium battery group bilayer equalising control device, to solve prior art In electric voltage equalization mode have that the accuracy of equalization is low and inefficient problem.
In order to solve above-mentioned technical problem, this utility model embodiment discloses following technical scheme:
This utility model embodiment provides a kind of novel lithium battery group bilayer equalising control device, monitors including battery status Circuit, battery management controller and balancing control circuit, wherein:
The input of described battery state monitoring circuit is connected with described lithium battery group, is used for gathering in described lithium battery group Often saving the monomer voltage data of cell and the cell voltage data of each battery unit, described battery unit is by two Or the series connection of plural cell is formed;
The input of described battery management controller is connected with the outfan of described battery state monitoring circuit, for basis Described monomer voltage data and described cell voltage data, output pulse signal controls electric power in described balancing control circuit and opens Close the break-make of pipe;
The input of described balancing control circuit is connected with the outfan of described battery management controller, outfan is with described Cell is connected with described battery unit, for being switched on or switched off corresponding charge or discharge according to described pulse signal Circuit;
Described balancing control circuit includes bottom inductance equalizing circuit and top layer electric capacity equalizing circuit, and described bottom inductance equalizes Circuit is connected with described cell, voltage between equalize described cell, described top layer electric capacity equalizing circuit Be connected with described battery unit, voltage between equalize described battery unit.
Preferably, described bottom inductance equalizing circuit is made up of multiple identical inductance equilibrium electronic circuits, and described inductance equalizes Electronic circuit includes energy storage inductor L, field-discharge resistance R, NMOS tube and PMOS, wherein:
Described NMOS tube is connected across the two ends of the first cell, and described PMOS is connected across the two ends of second comonomer battery, Described first cell and described second comonomer battery are the battery that two joints are adjacent;
One end of described energy storage inductor L is connected between described NMOS tube and described PMOS, the other end is connected to described Between first cell and described second comonomer battery;
Described field-discharge resistance R is in parallel with described energy storage inductor L;
The diode of a field of electric force effect it is parallel with respectively in described NMOS tube and described PMOS.
Preferably, described top layer electric capacity equalizing circuit includes storage capacitor, the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, wherein:
The side of described storage capacitor is connected with the positive pole of described battery unit by described first metal-oxide-semiconductor respectively, another Side is connected with the negative pole of described battery unit by described second metal-oxide-semiconductor respectively.
Preferably, described top layer electric capacity equalizing circuit also includes the first equalizing resistance and the second equalizing resistance, wherein:
Described first equalizing resistance is connected between described first metal-oxide-semiconductor and the positive pole of described battery unit, described second equal Weighing apparatus resistant series is between the negative pole of the second metal-oxide-semiconductor and described battery unit.
Preferably, described device also includes battery protecting circuit, wherein:
The input of described battery protecting circuit is connected with described battery management controller, outfan and described lithium battery group It is connected.
Preferably, the inductance value of described energy storage inductor L is 8~12 μ H.
Preferably, the resistance of described field-discharge resistance R is 15~25k Ω.
Preferably, the capacitance of described storage capacitor is 450~550 μ F.
Preferably, the resistance of described first equalizing resistance and described second equalizing resistance is 1~3k Ω.
From above technical scheme, a kind of novel lithium battery group bilayer Balance route dress that this utility model embodiment provides Put, including the battery state monitoring circuit being sequentially connected with, battery management controller and balancing control circuit, described battery shape Monitoring Data is sent to described battery management controller by state observation circuit, and described data are entered by described battery management controller After line algorithm is analyzed, send control signal to described balancing control circuit, realize in described lithium battery group between cell The precise equalization of energy.
Described balancing control circuit includes bottom inductance equalizing circuit and top layer electric capacity equalizing circuit, and described bottom inductance equalizes Circuit, using inductance as energy medium transfer, it is achieved in described lithium battery group, the energy between cell shifts;Described top Layer capacitance equalizing circuit top, using flying capacitance as equilibrium medium, it is achieved equal between battery unit in described lithium battery group Weighing apparatus, this embodiment simplifies overall system architecture, thus is substantially reduced and realizes cost, meanwhile, in the present embodiment employing, Lower floor's equalizing circuit coordination, it is achieved the dynamic transfer of energy between wantonly two monomers of lithium battery group and between battery unit, carries High whole system equalization efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will to embodiment or In description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, for ordinary skill people For Yuan, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 shows for the basic structure of a kind of novel lithium battery group bilayer equalising control device that this utility model embodiment provides It is intended to;
The basic structure schematic diagram of a kind of balancing control circuit that Fig. 2 provides for this utility model embodiment;
Fig. 3 is the basic structure schematic diagram of the bottom inductance equalizing circuit in Fig. 2;
Fig. 4 is the basic structure schematic diagram of the top layer electric capacity equalizing circuit in Fig. 2.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in this utility model, below in conjunction with this practicality Accompanying drawing in new embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that Described embodiment is only a part of embodiment of this utility model rather than whole embodiments.New based on this practicality Embodiment in type, the every other reality that those of ordinary skill in the art are obtained under not making creative work premise Execute example, all should belong to the scope of this utility model protection.
See Fig. 1, a kind of novel lithium battery group bilayer equalising control device basic provided for this utility model embodiment Structural representation, the voltage balance control in lithium battery group, described lithium battery group can also be by several battery units Series connection is formed, and each described battery unit includes three cells connected, and certainly, described battery unit can also be by The series connection of two or more cells is formed.
Described equalising control device include battery state monitoring circuit 1, battery management controller 2, balancing control circuit 3, Battery protecting circuit 4 and electric power system 5, wherein, battery management controller 2 includes data processing chip, data acquisition Interface, GIPO data-interface and pwm signal output interface, described data processing chip uses STM32F103C8T6 core Sheet.
The input of described battery state monitoring circuit 1 is connected with described lithium battery group, is used for gathering described lithium battery group When the most often saving the monomer voltage data of cell and the cell voltage data of described battery unit and balance charge/discharge Electric current and battery temperature data.
The input of described battery management controller 2 is connected with the outfan of described battery state monitoring circuit 1, is used for According to described monomer voltage data and described cell voltage data, output pwm pulse signal controls described balancing control circuit The break-make of power switch pipe in 3, the balancing energy realized between described cell and described battery unit.Meanwhile, root is gone back According to described monomer voltage data, electric current and battery temperature data, control the logical of power switch in described battery protecting circuit 4 Disconnected, put and overtemperature protection to protect described lithium battery group not overcharge and cross, wherein, described battery protecting circuit 4 leads to Cross GPIO interface to be connected with described battery management controller 2.
Meanwhile, described battery state monitoring circuit 1 and battery management controller 2 are also associated with electric power system 5, described confession The input of electricity system 5 is connected with described lithium battery group, and being used for by described lithium battery group is that described battery status is monitored Circuit 1 and described battery management controller 2 provide electric energy, and use compared with additional supply powers, it is possible to reduce described double The volume of layer equalising control device.
The input of described balancing control circuit 3 is connected with the outfan of described battery management controller 2, outfan with Described cell is connected with described battery unit, for according to described pulse signal be switched on or switched off corresponding charging or Discharge circuit.
As in figure 2 it is shown, described balancing control circuit 3 includes bottom inductance equalizing circuit and top layer electric capacity equalizing circuit, institute State bottom inductance equalizing circuit to be connected with described cell, between cell in equalize described battery unit Voltage;Described top layer electric capacity equalizing circuit is connected with described battery unit, voltage between equalize described battery unit.
As it is shown on figure 3, described bottom inductance equalizing circuit is made up of multiple identical inductance equilibrium electronic circuits, described inductance Equilibrium electronic circuit includes energy storage inductor L, field-discharge resistance R, NMOS tube and PMOS.The present embodiment is with one of them electricity As a example by sense equilibrium electronic circuit, described bottom inductance equalizing circuit is described in detail.
Described inductance equilibrium electronic circuit includes energy storage inductor L1, field-discharge resistance R1, NMOS tube M1-aWith PMOS M1-b.Institute State NMOS tube M1-aIt is connected across the first cell B2Two ends, described PMOS M1-bIt is connected across second comonomer battery B1 Two ends, described first cell B2With described second comonomer battery B1It it is the battery that two joints are adjacent;Described energy storage inductor L1One end be connected to described NMOS tube M1-aWith PMOS M1-bBetween, the other end be connected to described first cell B2 With described second comonomer battery B1;Described field-discharge resistance R1With described energy storage inductor L1It is in parallel, for by described energy storage electricity Sense L1The dump energy of storage consumes in electrical resistance;Described NMOS tube M1-aWith described PMOS M1-bUpper it is parallel with respectively The diode D of one field of electric force effect1-aAnd D1-b.In the present embodiment, described energy storage inductor L1Inductance value be 8~12 μ H, described field-discharge resistance R1Resistance be 15~25k Ω, but be not limited to described numerical range.
Two field of electric force effect metal-oxide-semiconductor M1-aAnd M1-bCoordinate mutually, control adjacent described first cell B2With described Second comonomer battery B1The break-make in equalizaing charge loop;Described field of electric force effect diode D1-aAnd D1-bConstitute balanced discharge to return Road.
Assume the described second comonomer battery B detected by described battery state monitoring circuit 11Voltage more than described first Cell B2Voltage, i.e. VB1 > VB2, the most described battery management controller 2 makes described PMOS by control signal M1-bConducting, because described second comonomer battery B1The pressure reduction at two ends makes to produce in loop electric current, but due to described inductance L1Induction reactance attribute, electric current can not moment maximum, but slowly uphill process, make described inductance L1Magnetic flux is continuously increased, Energy is accumulated, and whole process achieves described second comonomer battery B1Energy is to described inductance L1Transfer, work as arrival Discharging after deadline, described battery management controller 2 makes described PMOS M by control1-bDisconnect described second single Body battery B1But, due to described inductance L1In store a large amount of magnetic flux, electric current can not reduce to zero moment, therefore its two End produces diode D described in voltage breakdown1_a, form loop, to described first cell B2It is charged, thus real The preliminary equilibrium of energy between existing two cells.
On the contrary, if the described second comonomer battery B that detects of described battery state monitoring circuit 11Voltage less than described First cell B2Voltage, i.e. VB1 < VB2, the most described battery management controller 2 makes described NMOS by control signal Pipe M1-aConducting.
In the present embodiment, described bottom inductance equalizing circuit is using inductance as energy medium transfer, it is achieved single in battery unit Between body battery energy transfer, topology electric current transfer path be two-way, it is possible to achieve from top to bottom or from bottom to top The bi-directional of energy is realized between two adjacent energy-storage battery monomers, can be simultaneously to phases multiple in described battery unit Adjacent battery is to carrying out charge and discharge balancing, in order to shorten time for balance, improves equalization efficiency circuit topology and is easily achieved, energy Consumption is few, is suitable to the electric voltage equalization of the few energy-storage battery group of amount of monomer.Meanwhile, the work of each inductance equilibrium electronic circuit is not subject to The impact of main line electric current, therefore any stage work such as can charge, discharges or shelve in set of cells.
As in figure 2 it is shown, described top layer electric capacity equalizing circuit includes a storage capacitor C, multiple first metal-oxide-semiconductor and multiple Second metal-oxide-semiconductor, the side of described storage capacitor C is respectively by the positive pole phase of described first metal-oxide-semiconductor with described battery unit Connect, opposite side is connected with the negative pole of described battery unit by described second metal-oxide-semiconductor respectively, wherein, and described first Metal-oxide-semiconductor can be the metal-oxide-semiconductor that model is identical with described second metal-oxide-semiconductor.In order to protect described storage capacitor C, described top layer Electric capacity equalizing circuit also includes multiple first equalizing resistance and multiple second equalizing resistance, and described first equalizing resistance is connected on Between described first metal-oxide-semiconductor and the positive pole of described battery unit, described second equalizing resistance is connected on the second metal-oxide-semiconductor and institute Stating between the negative pole of battery unit, wherein, described first equalizing resistance can be that model is identical with described second equilibrium electronics Resistance.In the present embodiment, the capacitance of described storage capacitor C is 450~550 μ F, described first equalizing resistance and The resistance of described second equalizing resistance is 1~3k Ω, but is not limited to described numerical range.
Described top layer electric capacity equalizing circuit, as a example by two electric capacity equilibrium electronic circuit therein, is situated between by the present embodiment in detail Continue.As shown in Figure 4, the side of described storage capacitor C is respectively by described first metal-oxide-semiconductor S1With the first resistance R01, and First battery unit M1Positive pole be connected, opposite side is respectively by described second metal-oxide-semiconductor S2With the second resistance R02, and institute State the first battery unit M1Negative pole be connected;Meanwhile, the side of described storage capacitor C is respectively by a described MOS Pipe S5With the first resistance R05, be connected with the positive pole of the 3rd battery unit M3, opposite side is respectively by described 2nd MOS Pipe S6With the second resistance R06, be connected with the negative pole of described 3rd battery unit M3.
Assume described first battery unit M to be detected by described battery state monitoring circuit 11Voltage more than described 3rd electricity The voltage of pool unit M3, i.e. VM1 > VM3, the most described battery management controller 2 makes described MOS switch by control signal S1And S2Conducting, described first battery unit M1Charge to described storage capacitor C, after arriving deadline of discharging, Described battery management controller 2 makes described MOS switch S by control signal1And S2Disconnect and make described MOS switch S5 and S6 turns on, thus described storage capacitor C transfers energy to described 3rd battery unit M3, to realize battery list Balancing energy between unit.Carrying out along with described storage capacitor C periodically discharge and recharge, it is achieved battery unit M1 and M3 Between electric voltage equalization, thus realize the equilibrium again of energy between battery unit.
In the present embodiment, described top layer equalizing circuit thinks that flying capacitance equalizes, and this balancing technique enough realizes point-to-point energy Amount directly transmission, equilibrium path is short, and efficiency is high, is suitable as equalizing system top layer equalizer and uses.When system detects When needing to open the equilibrium between battery unit, then open battery unit inter mode, and judge to be currently needed for equalizing Battery unit, and control opening or disconnected of MOS switch by output control signal, thus switched by the periodicity of electric capacity Realize energy and transfer to the battery unit that voltage is minimum from voltage the highest energy-storage battery unit is point-to-point.
Utilize the described double-deck equalising control device that the present embodiment provides, when described battery state monitoring circuit 1 and described electricity Pond Management Controller 2 detects and analyzes the voltage between cell when needing to open bottom equilibrium, in battery unit When difference is more than the first predetermined threshold value, then open described bottom inductance equalizing circuit;Certain interval of time continues detection, when When the voltage differences between cell in battery unit is less than the first predetermined threshold value, then close described bottom inductance equilibrium electricity Road, detects whether that whether the voltage differences needing to open between top layer equilibrium, i.e. battery unit is more than the second predetermined threshold value then. When detection and analyze need between battery unit to equalize time, voltage differences between battery unit presets more than second During threshold value, then open described top layer equalizing circuit, realize in whole lithium battery group the balancing energy between battery unit with this.
Wherein, described first predetermined threshold value and described second predetermined threshold value, can sets itself, this reality according to actual needs Execute example not limit at this.
In the present embodiment, described bottom inductance equalizing circuit and described top layer electric capacity equalizing circuit are entered in real time by CAN Row data are transmitted, and upper and lower layer equalizing circuit coordination does not interfere with each other, it is achieved the energy of wantonly two cells of set of cells Direct or leap property is transmitted, and compared with monolayer equilibrium, the program can quickly realize the dynamic transfer of energy between lithium battery group, Improve the equalization efficiency of whole system.
Meanwhile, described equalising control device can use low-power consumption, the single-chip microcomputer of low cost and complicated programmable logic device Part, coordinates software to control, and is possible not only to realize the real-time monitoring to the data such as cell voltage, electric current, it is also possible to it is right to realize Fill the accurately sampling of sampled data and control.
It should be noted that in this article, such as the relational terms of " first " and " second " or the like be used merely to by One entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or behaviour Relation or the order of any this reality is there is between work.And, term " includes ", " comprising " or it is any Other variants are intended to comprising of nonexcludability so that include the process of a series of key element, method, article or Equipment not only includes those key elements, but also includes other key elements being not expressly set out, or also includes for this mistake The key element that journey, method, article or equipment are intrinsic.In the case of there is no more restriction, statement " include one It is individual ... " key element that limits, it is not excluded that there is also in including the process of described key element, method, article or equipment Other identical element.
The above is only detailed description of the invention of the present utility model, makes to skilled artisans appreciate that or realize this reality With novel.Multiple amendment to these embodiments will be apparent to one skilled in the art, herein institute The General Principle of definition can realize in the case of without departing from spirit or scope of the present utility model in other embodiments. Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to disclosed herein Principle and the consistent the widest scope of features of novelty.

Claims (9)

1. a novel lithium battery group bilayer equalising control device, for lithium battery group, it is characterised in that include battery shape State observation circuit, battery management controller and balancing control circuit, wherein:
The input of described battery state monitoring circuit is connected with described lithium battery group, is used for gathering in described lithium battery group Often saving the monomer voltage data of cell and the cell voltage data of each battery unit, described battery unit is by two Or the series connection of plural cell is formed;
The input of described battery management controller is connected with the outfan of described battery state monitoring circuit, for basis Described monomer voltage data and described cell voltage data, output pulse signal controls electric power in described balancing control circuit and opens Close the break-make of pipe;
The input of described balancing control circuit is connected with the outfan of described battery management controller, outfan is with described Cell is connected with described battery unit, for being switched on or switched off corresponding charge or discharge according to described pulse signal Circuit;
Described balancing control circuit includes bottom inductance equalizing circuit and top layer electric capacity equalizing circuit, and described bottom inductance equalizes Circuit is connected with described cell, voltage between equalize described cell, described top layer electric capacity equalizing circuit Be connected with described battery unit, voltage between equalize described battery unit.
Novel lithium battery group bilayer equalising control device the most according to claim 1, it is characterised in that described bottom Inductance equalizing circuit is made up of multiple identical inductance equilibrium electronic circuits, described inductance equilibrium electronic circuit include energy storage inductor L, Field-discharge resistance R, NMOS tube and PMOS, wherein:
Described NMOS tube is connected across the two ends of the first cell, and described PMOS is connected across the two ends of second comonomer battery, Described first cell and described second comonomer battery are the battery that two joints are adjacent;
One end of described energy storage inductor L is connected between described NMOS tube and described PMOS, the other end is connected to described Between first cell and described second comonomer battery;
Described field-discharge resistance R is in parallel with described energy storage inductor L;
The diode of a field of electric force effect it is parallel with respectively in described NMOS tube and described PMOS.
Novel lithium battery group bilayer equalising control device the most according to claim 1, it is characterised in that described top layer Electric capacity equalizing circuit includes storage capacitor, the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, wherein:
The side of described storage capacitor is connected with the positive pole of described battery unit by described first metal-oxide-semiconductor respectively, another Side is connected with the negative pole of described battery unit by described second metal-oxide-semiconductor respectively.
Novel lithium battery group bilayer equalising control device the most according to claim 3, it is characterised in that described top layer Electric capacity equalizing circuit also includes the first equalizing resistance and the second equalizing resistance, wherein:
Described first equalizing resistance is connected between described first metal-oxide-semiconductor and the positive pole of described battery unit, described second equal Weighing apparatus resistant series is between the negative pole of the second metal-oxide-semiconductor and described battery unit.
Novel lithium battery group bilayer equalising control device the most according to claim 1, it is characterised in that described device Also include battery protecting circuit, wherein:
The input of described battery protecting circuit is connected with described battery management controller, outfan and described lithium battery group It is connected.
Novel lithium battery group bilayer equalising control device the most according to claim 2, it is characterised in that described energy storage The inductance value of inductance L is 8~12 μ H.
Novel lithium battery group bilayer equalising control device the most according to claim 2, it is characterised in that described demagnetization The resistance of resistance R is 15~25k Ω.
Novel lithium battery group bilayer equalising control device the most according to claim 3, it is characterised in that described energy storage The capacitance of electric capacity is 450~550 μ F.
Novel lithium battery group bilayer equalising control device the most according to claim 4, it is characterised in that described first The resistance of equalizing resistance and described second equalizing resistance is 1~3k Ω.
CN201620316977.9U 2016-04-05 2016-04-13 Novel double -deck balanced control of lithium cell group device Expired - Fee Related CN205509600U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110611356A (en) * 2019-10-30 2019-12-24 山东超越数控电子股份有限公司 Notebook lithium battery charging protection method
CN110745032A (en) * 2019-10-25 2020-02-04 江苏威蜂动力工业有限公司 Balance control system and method for automobile lithium battery
CN113078694A (en) * 2020-01-03 2021-07-06 中车唐山机车车辆有限公司 Lithium battery box and control method applied to lithium battery box

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110745032A (en) * 2019-10-25 2020-02-04 江苏威蜂动力工业有限公司 Balance control system and method for automobile lithium battery
CN110611356A (en) * 2019-10-30 2019-12-24 山东超越数控电子股份有限公司 Notebook lithium battery charging protection method
CN113078694A (en) * 2020-01-03 2021-07-06 中车唐山机车车辆有限公司 Lithium battery box and control method applied to lithium battery box

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