CN102024982A - Mixed battery device - Google Patents
Mixed battery device Download PDFInfo
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- CN102024982A CN102024982A CN2010105550457A CN201010555045A CN102024982A CN 102024982 A CN102024982 A CN 102024982A CN 2010105550457 A CN2010105550457 A CN 2010105550457A CN 201010555045 A CN201010555045 A CN 201010555045A CN 102024982 A CN102024982 A CN 102024982A
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- lead
- lithium 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
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
Because the distinctive performance advantage of lithium ion battery (can abbreviate lithium battery as), it is widely used in portable electronics such as laptop computer, video camera, mobile communication.The high-capacity lithium battery of exploitation has begun to try out in electric automobile at present, and expectation will become one of major impetus power supply of 21 century electric automobile, and will be applied aspect artificial satellite, Aero-Space and the energy storage.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 the 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, has higher energy to weight ratio, energy volume ratio;
2, voltage height, single-unit lithium battery voltage is 3.6V, approximates the series voltage of 3 NI-Gs or nickel-hydrogen chargeable cell;
3, self discharge is little, but 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 are about 200 times, and be 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, can reach 500 times, take all factors into consideration, the ratio of performance to price will be more than 2 times of lead-acid battery.
Simultaneously, lithium battery has a following shortcoming:
1, the lithium battery security performance is relatively poor;
2, the big current capacity of lithium battery is relatively poor, when heavy-current discharge or charging barrier film is punctured, and makes the lithium battery breakage;
3, the too high lithium battery bulging that makes easily of charging voltage causes and can't use, and plate needs protection in the use.
According to foregoing as can be known, the mode that demand is a kind of can guarantee the abundant use to lithium battery, can avoid again charging and discharge process in the lithium battery infringement that may be subjected 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 charging and discharge process in the lithium battery infringement that may be subjected to.
In view of this, the invention discloses a kind of hybrid battery device, comprising: the lithium battery group, a plurality of lithium batteries are by series connection and/or the lithium battery group that forms in parallel; The lead-acid battery group, a plurality of 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 the 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 the described lithium battery group, the lithium battery of a plurality of parallel connections forms lithium battery group in parallel, and a plurality of lithium battery groups in parallel are connected to form described lithium battery group; In the described lead-acid battery group, the lead-acid battery of a plurality of parallel connections forms lead-acid battery group in parallel, and a plurality of 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 a plurality of lithium battery groups in parallel is identical, and the lead-acid battery quantity in described a plurality of lead-acid battery groups in parallel is identical.
In technique scheme, preferably, be connected with at least one equalizing resistance between described lithium battery group and the described lead-acid battery group, make a part of lithium battery in the described lithium battery group of cutting apart by described at least one equalizing resistance identical with a part of lead-acid battery parallel connection and voltage in the corresponding described lead-acid battery group.By this technical scheme, use equalizing resistance to connect lithium battery group and lead-acid battery group, can more help the protection of lithium battery group with littler unit adjusting lithium battery group and the electric energy between the lead-acid battery group.
In technique scheme, preferably, the voltage of a part of lithium battery in the described lithium battery group is the least common multiple of the voltage of the voltage of the lithium battery in the described lithium battery group and the lead-acid battery in the described lead-acid battery group.
In technique scheme, preferably, separately described lithium battery group is charged so that described hybrid battery device is charged.By this technical scheme, the lithium battery group is charged to the lead-acid battery group in the hybrid battery device.
In technique scheme, preferably, described lithium battery group is separated from described hybrid battery device when charging.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, simultaneously described lithium battery group and described lead-acid battery group are charged so that described hybrid battery device is charged.
In technique scheme, preferably, C
Pb=(1/4～1/2) C
Li, C wherein
PbBe the battery capacity of described lead-acid battery group, described C
LiBe described lithium battery cell set capacity.By this technical scheme, both guaranteed that the lead-acid battery group can cushion big electric current for the lithium battery group, it is overweight to have guaranteed to cause the hybrid battery device again.
By technique scheme, can realize a kind of hybrid battery device, advantage such as it had both had the high-energy weight ratio of lithium battery and energy volume ratio, voltage height, discharge is little, the life-span is long has been eliminated lithium battery again and has been discharged and recharged the shortcoming that easy appearance damages.
Description of drawings
Fig. 1 is according to hybrid battery schematic representation of apparatus of the present invention;
Fig. 2 A is a hybrid battery schematic representation of apparatus according to an embodiment of the invention;
Fig. 2 B is a hybrid battery schematic representation of apparatus according to an embodiment of the invention;
Fig. 3 is the charging schematic diagram of lithium battery group and lead-acid battery group in the hybrid battery device according to an embodiment of the invention;
Fig. 4 is the discharge schematic diagram of hybrid battery device according to an embodiment of the invention and the discharge schematic diagram of lead-acid battery group wherein.
Embodiment
In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with the drawings and specific embodiments.
Set forth a lot of details in the following description 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 hybrid battery schematic representation of apparatus of the present invention.
As shown in Figure 1, the invention provides a kind of hybrid battery device 100, comprising: lithium battery group 102, a plurality of lithium batteries are by series connection and/or the lithium battery group 102 that forms in parallel; Lead-acid battery group 104, a plurality of 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 the 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 the described lithium battery group 102, the lithium battery of a plurality of parallel connections forms lithium battery group in parallel, and a plurality of lithium battery groups in parallel are connected to form described lithium battery group 102; In the described lead-acid battery group 101, the lead-acid battery of a plurality of parallel connections forms lead-acid battery group in parallel, and a plurality of 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 a plurality of lithium battery groups in parallel is identical, and the lead-acid battery quantity in described a plurality of lead-acid battery groups in parallel is identical.
In technique scheme, be connected with at least one equalizing resistance between described lithium battery group 102 and the described lead-acid battery group 104, make a part of lithium battery in the described lithium battery group of cutting apart by described at least one equalizing resistance 102 identical with a part of lead-acid battery parallel connection and voltage in the 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 more help the protection of lithium battery group with littler unit adjusting lithium battery group and the electric energy between the lead-acid battery group.
In technique scheme, the voltage of a part of lithium battery in the described lithium battery group 102 is the least common multiple of the voltage of the voltage of the lithium battery in the described lithium battery group 102 and the lead-acid battery in the described lead-acid battery group 104.
In technique scheme, separately described lithium battery group 102 is charged so that described hybrid battery device 100 is charged.By this technical scheme, the lithium battery group is charged to the lead-acid battery group in the hybrid battery device.
In technique scheme, described lithium battery group 102 is separated from described hybrid battery device 100 when charging.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, simultaneously described lithium battery group 102 and described lead-acid battery group 104 are charged so that described hybrid battery device 100 is charged.
In technique scheme, C
Pb=(1/4～1/2) C
Li, C wherein
PbBe the battery capacity of described lead-acid battery group 104, described C
LiBe described lithium battery group 102 battery capacities.By this technical scheme, both guaranteed that the lead-acid battery group can cushion big electric current for the lithium battery group, it is overweight to have guaranteed to cause the hybrid battery device again.
Fig. 2 A be according to one embodiment of present invention with the hybrid battery schematic representation of apparatus.
Choose a kind of element and lithium battery and be used, make the big electric current in its work of sharing lithium battery, can protect lithium battery not damaged by it again.
1, super capacitor: super capacitor can be charged to any current potential in its range of nominal tension, and can emit fully.But high-frequency fast charging and discharging can cause the capacitor inner heat, capacity attenuation, and internal resistance increases, and can cause the capacitor performance collapse in some cases.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, and big current power is bigger, 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 the lead-acid battery assembly to close the lithium battery group and use.With lithium battery group 202, lead-acid battery group 204 in parallel uses, simple and convenient.
Wherein, the selection principle of lead-acid battery and lithium battery is:
1, realize at utmost making lithium battery to be operated in being fit to the state purpose is principle, the common lead acid accumulator short time can provide the discharging current of 0.25 hour discharge rate, during for the discharge of common lithium battery 1/4 of battery capacity, for lead-acid battery group and lithium battery group (C
PbBe lead-acid battery pool-size, C
LiBe the lithium battery pool-size), work as C
Pb〉=1/4C
LiThe lead-acid battery group can well be carried on a shoulder pole big electric current for the lithium battery component in the early stage;
2, by condition 1 C as can be known
PbThe ability for lithium battery component load electric current is just strong more at short notice during increase, but the big more weight of lead-acid battery pool-size is heavy more, causes the power brick quality overweight, and cost performance descends, and takes all factors into consideration 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 different charging modes:
1, adopt lithium battery group and lead-acid battery group to charge jointly, its advantage makes the effect of hybrid battery device perform to maximum efficiency for lead-acid battery group and lithium battery group are full of simultaneously.
2, adopt the lithium battery group to charge separately, its advantage is that lithium battery group weight is light, energy to weight ratio is higher, begins a new line conveniently, after lithium cell charging finishes, can be the lead-acid battery charging in the hybrid battery device.
Fig. 2 B is a hybrid battery schematic representation of apparatus according to an embodiment of the invention.
As shown in Figure 2, get the least common multiple of voltage of the lead-acid battery of lithium battery in the lithium battery group 202, lead-acid battery group 204, and use equalizing resistance 206 to connect lithium battery group 202 and lead-acid battery groups 204 according to this voltage least common multiple.For example, if the single-unit lithium battery is 3.2V, the single-unit lead-acid battery is 2V, then power taking pressure least common multiple is 16V, is that unit uses equalizing resistance 206 to connect lithium battery group 202 and lead-acid battery groups 204 with 16V, makes that voltage in the lithium battery group 202 is that voltage is that a part of lead-acid battery of 16V is in parallel in a part of lithium battery and the lead-acid battery group 204 of 16V.Adopt this technical scheme, make and more to help the protection of lithium battery group with littler unit adjusting lithium battery group and the electric energy between the lead-acid battery group.
Fig. 3 is the charging schematic diagram of lithium battery group and lead-acid battery group in the hybrid battery device according to an embodiment of the invention.
As shown in Figure 3; when in mixing arrangement, receiving big electric current (as the charging initial stage); lead-acid battery group of received current capacity is stronger; at first received current makes the lithium battery group avoid the impact of big electric current, has played the effect of protection lithium battery group; and charging latter stage; when the voltage of lithium battery group reached the constant voltage section, the lead-acid battery group can absorb charging current well, to protect the lithium battery group effectively.Among the figure, the 302nd, the charging curve of lithium battery group, the 304th, the charging curve of lead-acid battery group.
Fig. 4 is the discharge schematic diagram of hybrid battery device according to an embodiment of the invention and the discharge schematic diagram of lead-acid battery group wherein.
As shown in Figure 4, during the discharge of hybrid battery device, the lead-acid battery group initial stage and latter stage discharging current than lithium battery group big (also promptly big) than hybrid battery device, this will allow the lithium battery group be operated under the stable discharge environment effectively, reduce the impact of current break to the lithium battery group.Among the 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 among Fig. 3, the lead-acid battery group can prevent effectively that to the cushioning effect of current break lithium battery is subjected to the impact of big reverse charge electric current, shown in the 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 last table, can find that the 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 the lead-acid battery group can eliminate of the impact of reverse charge electric current well to the 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 use, advantages such as it had both had the high-energy weight ratio of lithium battery and energy volume ratio, voltage height, discharge is little, the life-span is long have been eliminated lithium battery again and occurred the shortcoming damaged easily when current breaks.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a hybrid battery device is characterized in that, comprising:
The lithium battery group, a plurality of lithium batteries are by series connection and/or the lithium battery group that forms in parallel;
The lead-acid battery group, a plurality of 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.
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 the described lithium battery group, the lithium battery of a plurality of parallel connections forms lithium battery group in parallel, and a plurality of lithium battery groups in parallel are connected to form described lithium battery group;
In the described lead-acid battery group, the lead-acid battery of a plurality of parallel connections forms lead-acid battery group in parallel, and a plurality of lead-acid battery groups in parallel are connected in series to form described lead-acid battery group.
4. hybrid battery device according to claim 3 is characterized in that, the lithium battery quantity in described a plurality of lithium battery groups in parallel is identical, and the lead-acid battery quantity in described a plurality of lead-acid battery groups in parallel is identical.
5. hybrid battery device according to claim 1, it is characterized in that, be connected with at least one equalizing resistance between described lithium battery group and the described lead-acid battery group, make a part of lithium battery in the described lithium battery group of cutting apart by described at least one equalizing resistance identical with a part of lead-acid battery parallel connection and voltage in the corresponding described lead-acid battery group.
6. hybrid battery device according to claim 5 is characterized in that, the voltage of a part of lithium battery in the described lithium battery group is the least common multiple of the voltage of the voltage of the lithium battery in the described lithium battery group and the lead-acid battery in the described lead-acid battery group.
7. hybrid battery device according to claim 1 is characterized in that, separately described lithium battery group is charged so that described hybrid battery device is charged.
8. hybrid battery device according to claim 7 is characterized in that, described lithium battery group is separated from described hybrid battery device when charging.
9. hybrid battery device according to claim 1 is characterized in that, simultaneously described lithium battery group and described lead-acid battery group is charged so that described hybrid battery device is charged.
10. according to each described hybrid battery device in the claim 1 to 9, it is characterized in that C
Pb=(1/4～1/2) C
Li, C wherein
PbBe described lead-acid battery cell set capacity, described C
LiBe described lithium battery cell set capacity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010555045.7A CN102024982B (en) | 2009-12-04 | 2010-11-23 | Mixed battery device |
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| CN102024982A true CN102024982A (en) | 2011-04-20 |
| CN102024982B CN102024982B (en) | 2014-04-16 |
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| CN201010555045.7A Active CN102024982B (en) | 2009-12-04 | 2010-11-23 | Mixed battery device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103311562A (en) * | 2012-03-12 | 2013-09-18 | 联想(北京)有限公司 | Charging battery, and charging control method and discharging control method thereof |
| CN108463936A (en) * | 2016-01-12 | 2018-08-28 | 日产自动车株式会社 | Power-supply system and its control method |
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| CN101882689A (en) * | 2010-06-11 | 2010-11-10 | 李小平 | Mixed voltage-stabilizing battery pack and charging management system thereof |
| CN103534134B (en) | 2011-03-16 | 2016-10-12 | 约翰逊控制技术公司 | There is the energy resource system of multiple energy storing device |
| 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 |
| CN107425224A (en) * | 2017-07-24 | 2017-12-01 | 深圳市朗泰通电子有限公司 | Ni-MH battery |
| US11462917B1 (en) | 2021-12-10 | 2022-10-04 | NDSL, Inc. | Methods, systems, and devices for maintenance and optimization of battery cabinets |
| US11689048B1 (en) | 2021-12-10 | 2023-06-27 | NDSL, Inc. | Methods, systems, and devices for maintenance and optimization of battery cabinets |
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| CN103311562A (en) * | 2012-03-12 | 2013-09-18 | 联想(北京)有限公司 | Charging battery, and charging control method and discharging control method thereof |
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| CN108463936A (en) * | 2016-01-12 | 2018-08-28 | 日产自动车株式会社 | Power-supply system and its control method |
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|---|---|
| CN101719557A (en) | 2010-06-02 |
| CN102024982B (en) | 2014-04-16 |
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