CN102024982B - Mixed battery device - Google Patents
Mixed battery device Download PDFInfo
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- CN102024982B CN102024982B CN201010555045.7A CN201010555045A CN102024982B CN 102024982 B CN102024982 B CN 102024982B CN 201010555045 A CN201010555045 A CN 201010555045A CN 102024982 B CN102024982 B CN 102024982B
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- battery group
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- acid battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a mixed battery device which comprises a lithium battery pack and a lead acid battery pack, wherein a plurality of lithium batteries are connected in series and/or in parallel to form the lithium battery pack, a plurality of lead acid batteries are connected in series and/or in parallel to form the lead acid battery pack, and the lithium battery pack and the lead acid battery pack are connected in parallel. Through the technical scheme, the lead acid battery pack can be used for buffering the large-current impact caused by charging and discharging on the lithium batteries and can absorb excessive charging current when the lithium batteries are charged to constant voltage.
Description
Technical field
The present invention relates to battery technology, in particular to a kind of hybrid battery device.
Background technology
Due to the distinctive performance advantage of lithium ion battery (can referred to as lithium battery), it is widely used in as laptop computer, video camera, mobile communication at portable electronics.The high-capacity lithium battery of exploitation has started to try out in electric automobile at present, and estimating to become one of major impetus power supply of 21 century electric automobile, and will aspect artificial satellite, Aero-Space and energy storage, be applied.Along with the pressure of the environmental protection aspect in the in short supply and world of the energy, lithium battery is widely used in electric motor car industry now, and the particularly appearance of LiFePO 4 material battery makes lithium battery have good shelf characteric and long cycle life.
Having the following advantages of lithium battery:
1, there is higher energy to weight ratio, energy volume ratio;
2, voltage is high, and single-lithium-battery cell voltage is 3.6V, approximates the series voltage of 3 NI-Gs or nickel-hydrogen chargeable cell;
3, self discharge is little, can long storage time, and this is the most outstanding superiority of lithium battery;
4, extra long life, the cycle life of long-life lead-acid battery is 200 left and right, the highest also with regard to 300 times, and lithium dynamical battery, cycle life reaches more than 300 times, and standard charging (5 hour rate) is used, and can reach 500 times, consider, the ratio of performance to price will be the more than 2 times of lead-acid battery.
Meanwhile, lithium battery has a following shortcoming:
1, lithium battery security performance is poor;
2, the large current capacity of lithium battery is poor, when heavy-current discharge or charging, easily makes barrier film puncture, and makes lithium battery breakage;
3, the too high lithium battery bulging that easily makes of charging voltage, causes and cannot use, and plate needs protection in use.
The mode known according to foregoing, demand is a kind of, can guarantee the abundant use to lithium battery, can avoid again the infringement that in charging and discharging process, lithium battery may be subject to.
Summary of the invention
Technical problem to be solved by this invention is, a kind of mode is provided, and can guarantee the abundant use to lithium battery, can avoid again the infringement that in charging and discharging process, lithium battery may be subject to.
In view of this, the invention discloses a kind of hybrid battery device, comprising: lithium battery group, multiple lithium batteries are by series connection and/or the lithium battery group that forms in parallel; Lead-acid battery group, multiple lead-acid batteries are by series connection and/or the lead-acid battery group that forms in parallel; Wherein, described lithium battery group is in parallel with described lead-acid battery group.By this technical scheme, use lead-acid battery group to cushion and discharge and recharge the heavy current impact that lithium battery is caused, and can during to constant voltage, absorb excessive charging current at lithium cell charging.
In technique scheme, preferably, described lithium battery group is identical with the voltage of described lead-acid battery group.
In technique scheme, preferably, in described lithium battery group, the lithium battery of multiple parallel connections forms lithium battery group in parallel, and multiple lithium battery groups in parallel connect to form described lithium battery group; In described lead-acid battery group, the lead-acid battery of multiple parallel connections forms lead-acid battery group in parallel, and multiple lead-acid battery groups in parallel are connected in series to form described lead-acid battery group.
In technique scheme, preferably, the lithium battery quantity in described multiple lithium battery groups in parallel is identical, and the lead-acid battery quantity in described multiple lead-acid battery groups in parallel is identical.
In technique scheme, preferably, between described lithium battery group and described lead-acid battery group, be connected with at least one equalizing resistance, a part of lithium battery in the described lithium battery group that makes to cut apart by described at least one equalizing resistance is identical with a part of lead-acid battery parallel connection and voltage in corresponding described lead-acid battery group.By this technical scheme, use equalizing resistance to connect lithium battery group and lead-acid battery group, can regulate the electric energy between lithium battery group and lead-acid battery group with less unit, be more conducive to the protection of lithium battery group.
In technique scheme, preferably, the voltage of a part of lithium battery in described lithium battery group is the least common multiple of the voltage of the lead-acid battery in voltage and the described lead-acid battery group of the lithium battery in described lithium battery group.
In technique scheme, preferably, separately described lithium battery group is charged to described hybrid battery device is charged.By this technical scheme, lithium battery group is charged to lead-acid battery group in hybrid battery device.
In technique scheme, preferably, described lithium battery group, when charging, is separated from described hybrid battery device.By this technical scheme, because lithium battery group weight is lighter, begin a new line conveniently, separately to lithium battery group charging more convenient and quicker.
In technique scheme, preferably, described lithium battery group and described lead-acid battery group are charged to described hybrid battery device is charged simultaneously.
In technique scheme, preferably, C
pb=(1/4～1/2) C
li, wherein C
pbfor the battery capacity of described lead-acid battery group, described C
lifor described lithium battery cell set capacity.By this technical scheme, both guaranteed that lead-acid battery group can cushion large electric current for lithium battery group, guaranteed again to cause hybrid battery device overweight.
By technique scheme, can realize a kind of hybrid battery device, it had both had that the high-energy weight ratio of lithium battery and energy volume ratio, voltage are high, little, the advantage such as the life-span is long of discharging, and have eliminated again the shortcoming that lithium battery is discharging and recharging easy appearance and damages.
Accompanying drawing explanation
Fig. 1 is according to the schematic diagram of hybrid battery device of the present invention;
Fig. 2 A is the schematic diagram of hybrid battery device according to an embodiment of the invention;
Fig. 2 B is the schematic diagram of hybrid battery device according to an embodiment of the invention;
Fig. 3 is the charging schematic diagram of lithium battery group and lead-acid battery group in hybrid battery device according to an embodiment of the invention;
Fig. 4 is the electric discharge schematic diagram of hybrid battery device according to an embodiment of the invention and the electric discharge schematic diagram of lead-acid battery group wherein.
Embodiment
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.
Set forth in the following description a lot of details so that fully understand the present invention, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, the present invention is not limited to the restriction of following public specific embodiment.
Fig. 1 is according to the schematic diagram of hybrid battery device of the present invention.
As shown in Figure 1, the invention provides a kind of hybrid battery device 100, comprising: lithium battery group 102, multiple lithium batteries are by series connection and/or the lithium battery group 102 that forms in parallel; Lead-acid battery group 104, multiple lead-acid batteries are by series connection and/or the lead-acid battery group 104 that forms in parallel; Wherein, described lithium battery group 102 is in parallel with described lead-acid battery group 104.By this technical scheme, use lead-acid battery group to cushion and discharge and recharge the heavy current impact that lithium battery is caused, and can during to constant voltage, absorb excessive charging current at lithium cell charging.
In technique scheme, described lithium battery group 102 is identical with the voltage of described lead-acid battery group 104.
In technique scheme, in described lithium battery group 102, the lithium battery of multiple parallel connections forms lithium battery group in parallel, and multiple lithium battery groups in parallel connect to form described lithium battery group 102; In described lead-acid battery group 101, the lead-acid battery of multiple parallel connections forms lead-acid battery group in parallel, and multiple lead-acid battery groups in parallel are connected in series to form described lead-acid battery group 104.
In technique scheme, the lithium battery quantity in described multiple lithium battery groups in parallel is identical, and the lead-acid battery quantity in described multiple lead-acid battery groups in parallel is identical.
In technique scheme, between described lithium battery group 102 and described lead-acid battery group 104, be connected with at least one equalizing resistance, a part of lithium battery in the described lithium battery group 102 that makes to cut apart by described at least one equalizing resistance is identical with a part of lead-acid battery parallel connection and voltage in corresponding described lead-acid battery group 104.By this technical scheme, use equalizing resistance to connect lithium battery group and lead-acid battery group, can regulate the electric energy between lithium battery group and lead-acid battery group with less unit, be more conducive to the protection of lithium battery group.
In technique scheme, the voltage of a part of lithium battery in described lithium battery group 102 is the least common multiple of the voltage of the lead-acid battery in voltage and the described lead-acid battery group 104 of the lithium battery in described lithium battery group 102.
In technique scheme, separately described lithium battery group 102 is charged to described hybrid battery device 100 is charged.By this technical scheme, lithium battery group is charged to lead-acid battery group in hybrid battery device.
In technique scheme, described lithium battery group 102, when charging, is separated from described hybrid battery device 100.By this technical scheme, because lithium battery group weight is lighter, begin a new line conveniently, separately to lithium battery group charging more convenient and quicker.
In technique scheme, described lithium battery group 102 and described lead-acid battery group 104 are charged to described hybrid battery device 100 is charged simultaneously.
In technique scheme, C
pb=(1/4～1/2) C
li, wherein C
pbfor the battery capacity of described lead-acid battery group 104, described C
lifor described lithium battery group 102 battery capacities.By this technical scheme, both guaranteed that lead-acid battery group can cushion large electric current for lithium battery group, guaranteed again to cause hybrid battery device overweight.
Fig. 2 A be according to one embodiment of present invention with the schematic diagram of hybrid battery device.
Choose a kind of element and lithium battery and be used in conjunction with, make the large electric current in its work of sharing lithium battery, can protect again lithium battery not damaged by it.
1, super capacitor: super capacitor can be charged to any current potential in its range of nominal tension, and can emit completely.But high-frequency fast charging and discharging can cause capacitor internal heating, capacity attenuation, internal resistance increases, and can cause in some cases capacitor performance collapse.And the energy of super capacitor is little, the about 5-10s of heavy-current discharge.
2, lead-acid battery: gravimetric specific energy is less, large current power is larger, and the high power discharge of 25s can be provided.Higher with the lead-acid battery gassing voltage of the equal model of lithium battery.
So, abandon super capacitor and select lead-acid battery assembly close lithium battery group use.By lithium battery group 202, lead-acid battery group 204 use in parallel, simple and convenient.
Wherein, the selection principle of lead-acid battery and lithium battery is:
1, realize at utmost make lithium battery be operated in be applicable to state object be principle, the common lead acid accumulator short time can provide the discharging current of 0.25 hour discharge rate, during for the electric discharge of common lithium battery 1/4 of battery capacity, for lead-acid battery group and lithium battery group (C
pbfor lead-acid battery pool-size, C
lifor lithium battery pool-size), work as C
pb>=1/4C
lilead-acid battery group can well be in the early stage for lithium battery component be carried on a shoulder pole large electric current;
2, by the known C of condition 1
pbduring increase, the ability for lithium battery component load electric current is just stronger at short notice, but the larger weight of lead-acid battery pool-size is heavier, causes power brick quality overweight, and cost performance declines, and considers and should choose C
pb≤ 1/2C
li.
The battery capacity selection principle of comprehensive above condition lead-acid battery group of the present invention and lithium battery group is C
pb=(1/2～1/4) C
li.
The hybrid battery device of lithium battery group and lead-acid battery group can be adopted to different charging modes:
1, adopt lithium battery group and lead-acid battery group jointly to charge, its advantage, for can make lead-acid battery group and lithium battery group be full of simultaneously, makes the effect of hybrid battery device perform to maximum efficiency.
2, adopt lithium battery group to charge separately, its advantage is that lithium battery group weight is light, energy to weight ratio is higher, begin a new line conveniently, and after lithium cell charging, can in hybrid battery device, be lead-acid battery charging.
Fig. 2 B is the schematic diagram of hybrid battery device according to an embodiment of the invention.
As shown in Figure 2, get the least common multiple of the voltage of the lead-acid battery of lithium battery in lithium battery group 202, lead-acid battery group 204, and use equalizing resistance 206 to connect lithium battery group 202 and lead-acid battery group 204 according to this voltage least common multiple.For example, if single-lithium-battery pond is 3.2V, single-unit lead-acid battery is 2V, power taking pressure least common multiple is 16V, take 16V as unit, use equalizing resistance 206 to connect lithium battery group 202 and lead-acid battery group 204, make a part of lead-acid battery that a part of lithium battery that in lithium battery group 202, voltage is 16V is 16V with voltage in lead-acid battery group 204 in parallel.Adopt this technical scheme, make to regulate the electric energy between lithium battery group and lead-acid battery group with less unit, be more conducive to the protection of lithium battery group.
Fig. 3 is the charging schematic diagram of lithium battery group and lead-acid battery group in hybrid battery device according to an embodiment of the invention.
As shown in Figure 3; while receiving large electric current in mixing arrangement (as the charging initial stage); lead-acid battery group received current ability is stronger; first received current, makes lithium battery group avoid the impact of large electric current, has played the effect of protection lithium battery group; and charging latter stage; when the voltage of lithium battery group reaches constant voltage section, lead-acid battery group can absorb charging current well, effectively to protect lithium battery group.In figure, the 302nd, the charging curve of lithium battery group, the 304th, the charging curve of lead-acid battery group.
Fig. 4 is the electric discharge schematic diagram of hybrid battery device according to an embodiment of the invention and the electric discharge schematic diagram of lead-acid battery group wherein.
As shown in Figure 4, during the electric discharge of hybrid battery device, the lead-acid battery group initial stage and latter stage discharging current than lithium battery group large (also large than hybrid battery device), this will allow lithium battery group be operated under stable discharge environment effectively, has reduced the impact of current break to lithium battery group.In figure, 402 is the discharge curve of lead-acid battery group, and 404 is the discharge curve of hybrid battery device (lithium battery group and lead-acid battery group).
In conjunction with the embodiment in Fig. 3, the cushioning effect of lead-acid battery group to current break, can prevent that lithium battery is subject to the impact of large reverse charge electric current effectively, as shown in following table experimental data:
| Experiment number | Lead-acid battery group Absorption Current (A) | Lithium battery Absorption Current (A) |
| 1 | 5.2 | 4.9 |
| 2 | 5.5 | 3.5 |
| 3 | 5.5 | 3.5 |
| 4 | 5.5 | 3.9 |
| 5 | 5.1 | 4.7 |
| 6 | 4.9 | 5.1 |
| 7 | 5.4 | 3.8 |
| 8 | 5.4 | 4.2 |
| 9 | 5.5 | 4.8 |
| 10 | 5.3 | 4.5 |
According to upper table, can find that lead-acid battery group will be higher than the form a team absorption of electric current of lithium battery to the absorption of electric current, so, use lead-acid battery group can eliminate well the impact of reverse charge electric current to lithium battery group.
In sum, according to technical scheme of the present invention, can realize a kind of hybrid battery device, lithium battery group and lead-acid battery group are mixed to use, it had both had, and the high-energy weight ratio of lithium battery and energy volume ratio, voltage are high, little, the advantage such as the life-span is long of discharging, and have eliminated again lithium battery and when current break, have easily occurred the shortcoming of damaging.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a hybrid battery device, is characterized in that, comprising:
Lithium battery group, multiple lithium batteries are by parallel, or series connection forms lithium battery group with the mode of combination in parallel;
Lead-acid battery group, multiple lead-acid batteries are by parallel, or series connection forms lead-acid battery group with the mode of combination in parallel;
Wherein, described lithium battery group is in parallel with described lead-acid battery group,
Between described lithium battery group and described lead-acid battery group, be connected with at least one equalizing resistance, a part of lithium battery in the described lithium battery group that makes to cut apart by described at least one equalizing resistance is identical with a part of lead-acid battery parallel connection and voltage in corresponding described lead-acid battery group, and the voltage of a part of lithium battery in described lithium battery group is the least common multiple of the voltage of the lead-acid battery in voltage and the described lead-acid battery group of the lithium battery in described lithium battery group.
2. hybrid battery device according to claim 1, is characterized in that, described lithium battery group is identical with the voltage of described lead-acid battery group.
3. hybrid battery device according to claim 1, is characterized in that, in described lithium battery group, the lithium battery of multiple parallel connections forms lithium battery group in parallel, and multiple lithium battery groups in parallel connect to form described lithium battery group;
In described lead-acid battery group, the lead-acid battery of multiple parallel connections forms lead-acid battery group in parallel, and multiple lead-acid battery groups in parallel are connected in series to form described lead-acid battery group.
4. hybrid battery device according to claim 1, is characterized in that, separately described lithium battery group is charged to described hybrid battery device is charged.
5. hybrid battery device according to claim 4, is characterized in that, described lithium battery group, when charging, is separated from described hybrid battery device.
6. hybrid battery device according to claim 1, is characterized in that, described lithium battery group and described lead-acid battery group is charged to described hybrid battery device is charged simultaneously.
7. according to the hybrid battery device described in any one in claim 1 to 6, it is characterized in that C
pb=(1/4～1/2) C
li, wherein C
pbfor described lead-acid battery cell set capacity, described C
lifor described lithium battery cell set capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010555045.7A CN102024982B (en) | 2009-12-04 | 2010-11-23 | Mixed battery device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910154763.0 | 2009-12-04 | ||
| CN200910154763A CN101719557A (en) | 2009-12-04 | 2009-12-04 | Mixing battery pack of lead-acid batteries and lithium batteries |
| CN201010555045.7A CN102024982B (en) | 2009-12-04 | 2010-11-23 | Mixed battery device |
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| Publication Number | Publication Date |
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| CN102024982A CN102024982A (en) | 2011-04-20 |
| CN102024982B true CN102024982B (en) | 2014-04-16 |
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| CN200910154763A Pending CN101719557A (en) | 2009-12-04 | 2009-12-04 | Mixing battery pack of lead-acid batteries and lithium batteries |
| CN201010555045.7A Active CN102024982B (en) | 2009-12-04 | 2010-11-23 | Mixed battery device |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882689A (en) * | 2010-06-11 | 2010-11-10 | 李小平 | Mixed voltage-stabilizing battery pack and charging management system thereof |
| EP2686195B1 (en) | 2011-03-16 | 2019-10-30 | CPS Technology Holdings LLC | Systems and methods for controlling multiple storage devices |
| CN103311562B (en) * | 2012-03-12 | 2015-06-03 | 联想(北京)有限公司 | Charging battery, and charging control method and discharging control method thereof |
| CN102969784B (en) | 2012-11-19 | 2015-01-21 | 雷星亮 | Hybrid cell |
| JP6460254B2 (en) * | 2015-09-29 | 2019-01-30 | 株式会社村田製作所 | Electricity storage pack |
| MY170641A (en) * | 2016-01-12 | 2019-08-21 | Nissan Motor | Power supply system and method for controlling same |
| CN107425224A (en) * | 2017-07-24 | 2017-12-01 | 深圳市朗泰通电子有限公司 | Ni-MH battery |
| US11689048B1 (en) | 2021-12-10 | 2023-06-27 | NDSL, Inc. | Methods, systems, and devices for maintenance and optimization of battery cabinets |
| US11462917B1 (en) | 2021-12-10 | 2022-10-04 | NDSL, Inc. | Methods, systems, and devices for maintenance and optimization of battery cabinets |
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| US6268714B1 (en) * | 1999-05-07 | 2001-07-31 | Tai-Her Yang | Voltage limiting circuit connected in parallel with a battery set and including a series-connected impedance which permits linear adjustments |
| CN201247804Y (en) * | 2008-05-19 | 2009-05-27 | 张志鹏 | Composite battery equipment of lithium battery combining with lead acid battery |
| US7570012B2 (en) * | 2001-04-05 | 2009-08-04 | Electrovaya Inc. | Energy storage device for loads having variable power rates |
| CN101552348A (en) * | 2009-02-13 | 2009-10-07 | 深圳市雄韬电源科技有限公司 | Mixing accumulator system |
-
2009
- 2009-12-04 CN CN200910154763A patent/CN101719557A/en active Pending
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- 2010-11-23 CN CN201010555045.7A patent/CN102024982B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6268714B1 (en) * | 1999-05-07 | 2001-07-31 | Tai-Her Yang | Voltage limiting circuit connected in parallel with a battery set and including a series-connected impedance which permits linear adjustments |
| US7570012B2 (en) * | 2001-04-05 | 2009-08-04 | Electrovaya Inc. | Energy storage device for loads having variable power rates |
| CN201247804Y (en) * | 2008-05-19 | 2009-05-27 | 张志鹏 | Composite battery equipment of lithium battery combining with lead acid battery |
| CN101552348A (en) * | 2009-02-13 | 2009-10-07 | 深圳市雄韬电源科技有限公司 | Mixing accumulator system |
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| CN101719557A (en) | 2010-06-02 |
| CN102024982A (en) | 2011-04-20 |
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