TW201523969A - Battery pack charging method - Google Patents
Battery pack charging method Download PDFInfo
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- TW201523969A TW201523969A TW102144149A TW102144149A TW201523969A TW 201523969 A TW201523969 A TW 201523969A TW 102144149 A TW102144149 A TW 102144149A TW 102144149 A TW102144149 A TW 102144149A TW 201523969 A TW201523969 A TW 201523969A
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- battery pack
- battery
- charging method
- pack charging
- poor
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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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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
本發明係與儲能電池充電技術有關，特別係指一種可用於具複數電池之電池組充電方法。 The invention relates to an energy storage battery charging technology, in particular to a battery pack charging method which can be used for a plurality of batteries.
近年來二次電池乃廣泛應用於多種可攜式電子產品，如行動電話、PDA、筆記型電腦、數位相機、數位攝影機等，其中又以鋰離子電池最常受到使用。然而較大型的應用例如：電動車具、家庭發電及儲電系統等，由於安全考量及電池管理的問題必須使用多個電池串/並聯的電池組。而針對電池組中個別電池的管理則使用外加保護/平衡電路的方式，即由電路偵測出狀態較差的電池，用其他狀態相對正常的電池補充電壓/電容量，以達到每顆電池性能平均的狀態。惟，外裝平衡電路板除了增加製作成本，在輸出時也會有能量的損耗；另外，就儲電系統的充電電池組而言，可能會由多達數十顆電池所組成，在完成平衡的過程中也需要耗費時間，多次進行平衡的同時也會損耗原本狀態正常的電池，造成裝置使用壽命的降低。 In recent years, secondary batteries have been widely used in a variety of portable electronic products, such as mobile phones, PDAs, notebook computers, digital cameras, digital cameras, etc., among which lithium-ion batteries are most commonly used. However, larger applications such as electric vehicles, home power generation, and power storage systems require multiple battery strings/parallel battery packs due to safety considerations and battery management issues. For the management of individual batteries in the battery pack, the protection/balance circuit is used, that is, the battery is detected by the circuit, and the voltage/capacity is supplemented with other relatively normal batteries to achieve the average performance of each battery. status. However, in addition to increasing the manufacturing cost, the externally-balanced circuit board also has energy loss in the output; in addition, in the case of the rechargeable battery pack of the power storage system, it may consist of up to dozens of batteries, and the balance is completed. In the process, it also takes time, and balancing the battery at the same time will cause the battery to be in a normal state, resulting in a decrease in the service life of the device.
鑒於傳統技術之缺點，本發明係提供一種電池組充電方法，係針對電池組中電容量較低的單電池進行先行充電，再對電池組全體進行統一充電，可改善各電池之間必須靠平衡來恢復電池組供電能力以導致額外能量耗損之缺點。 In view of the shortcomings of the conventional technology, the present invention provides a battery pack charging method for charging a battery cell with a lower capacity in a battery pack, and then uniformly charging the entire battery pack, thereby improving the balance between the batteries. To restore the battery pack's power supply capability to cause the disadvantage of additional energy consumption.
本發明係提供一種電池組充電方法，其步驟包括：對該電池組進行極化測試，藉此找出該電池組中電容量較低之較差單電池；對該較差單電池單獨進行充電，直到該較差單電池之電容量增加至與其他單電池之電容量相同為止；對該電池組全體進行充電。 The present invention provides a battery pack charging method, the method comprising: performing a polarization test on the battery pack, thereby finding a poor battery cell having a lower capacity in the battery pack; separately charging the poor battery cell until The capacity of the poor battery cell is increased until it is the same as the capacitance of the other battery cells; the entire battery pack is charged.
以上之概述與接下來的詳細說明及附圖，皆是為了能進一步 說明本發明達到預定目的所採取的方式、手段及功效。而有關本發明的其他目的及優點，將在後續的說明及圖示中加以闡述。 The above summary and the following detailed description and drawings are intended to further The manner, means and efficacy of the present invention to achieve the intended purpose are illustrated. Other objects and advantages of the present invention will be described in the following description and drawings.
S1~S3‧‧‧操作步驟 S1~S3‧‧‧ operation steps
圖1係為本發明之電池組充電方法之操作步驟流程圖。 1 is a flow chart showing the operation steps of the battery pack charging method of the present invention.
以下係藉由特定的具體實例說明本發明之實施方式，熟悉此技藝之人士可由本說明書所揭示之內容輕易地瞭解本發明之其他優點與功效。 The embodiments of the present invention are described below by way of specific examples, and those skilled in the art can readily appreciate other advantages and functions of the present invention from the disclosure herein.
本發明之電池組充電方法之操作步驟流程圖如圖1所示，包括：對該電池組進行極化測試，藉此找出該電池組中電容量較低之較差單電池S1；對該較差單電池單獨進行充電，直到該較差單電池之電容量增加至與其他單電池之電容量相同為止S2；對該電池組全體進行充電S3。其中該極化測試係使用兩階段電流脈衝測試法或交流阻抗分析法。 A flow chart of the operation steps of the battery pack charging method of the present invention is as shown in FIG. 1 , including: performing a polarization test on the battery pack, thereby finding a poor single battery S1 having a lower capacity in the battery pack; The single battery is separately charged until the electric capacity of the poor single battery increases to the same as the electric capacity of the other single batteries S2; the entire battery pack is charged S3. The polarization test uses a two-stage current pulse test or an AC impedance analysis.
本發明使用之兩階段電流脈衝測試法，其步驟係為：先針對整體電池組中的各單電池在不同的充電狀態(SOC)下(100%-20%)進行脈衝偵測，得到測試電壓差值△V2，而在單一SOC的狀態中又以不同的電流速率進行電流脈衝，可得到一健康標準曲線公式：CR=δ△V2+γ其中δ與γ為經驗參數，再將電流I除以電流速率參數CR得到當前電容量AHCAged，此值與電池理論電容量AHCNom相除可得健康狀況SOH：AHC=I/CR The two-stage current pulse test method used in the present invention is: firstly, pulse detection is performed on each unit cell in the whole battery pack under different state of charge (SOC) (100%-20%) to obtain a test voltage. The difference ΔV 2 , and the current pulse is performed at different current rates in the state of single SOC, a healthy standard curve formula can be obtained: C R =δΔV 2 +γ, where δ and γ are empirical parameters, and then The current I is divided by the current rate parameter C R to obtain the current capacitance AHC Aged . This value is divided by the theoretical battery capacity AHC Nom to obtain the health status SOH: AHC=I/C R
SOH=AHCAged/AHCNom SOH=AHC Aged /AHC Nom
本發明之電池組充電方法係可為二次回收使用之動力電池組或新組成之儲電用電池組，該電池係可為鋰離子電池、鉛酸電池、鎳氫電池或其他種類之蓄電池。本發明係以兩段式電流脈衝測試法與交流阻抗分析法分析電池組中各電池之性能，相較於傳統技術，本發明不需使用平衡電路，減少硬體建置與操作成本，且可避免傳統電池平衡方法造成之額外能源消耗與損害電池性能之缺點。 The battery pack charging method of the present invention may be a power battery pack for secondary recycling or a newly formed battery pack for storage, which may be a lithium ion battery, a lead acid battery, a nickel hydrogen battery or other types of batteries. The invention analyzes the performance of each battery in the battery pack by the two-stage current pulse test method and the AC impedance analysis method. Compared with the conventional technology, the present invention does not need to use the balance circuit, thereby reducing the hardware construction and operation cost, and Avoid the additional energy consumption caused by traditional battery balancing methods and the disadvantages of battery performance.
上述之實施例僅為例示性說明本發明之特點及其功效，而非用於限制本發明之實質技術內容的範圍。任何熟習此技藝之人士均可在不違背本發明之精神及範疇下，對上述實施例進行修飾與變化。因此，本發明之權利保護範圍，應如後述之申請專利範圍所列。 The above-described embodiments are merely illustrative of the features and functions of the present invention and are not intended to limit the scope of the technical scope of the present invention. Modifications and variations of the above-described embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be as set forth in the scope of the claims described below.
S1~S3‧‧‧操作步驟 S1~S3‧‧‧ operation steps
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102144149A TWI518964B (en) | 2013-12-03 | 2013-12-03 | Battery pack charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102144149A TWI518964B (en) | 2013-12-03 | 2013-12-03 | Battery pack charging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201523969A true TW201523969A (en) | 2015-06-16 |
| TWI518964B TWI518964B (en) | 2016-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW102144149A TWI518964B (en) | 2013-12-03 | 2013-12-03 | Battery pack charging method |
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| TW (1) | TWI518964B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI621318B (en) * | 2016-12-09 | 2018-04-11 | Nat Chung Shan Inst Science & Tech | Electric vehicle range extension system |
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2013
- 2013-12-03 TW TW102144149A patent/TWI518964B/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI621318B (en) * | 2016-12-09 | 2018-04-11 | Nat Chung Shan Inst Science & Tech | Electric vehicle range extension system |
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| Publication number | Publication date |
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| TWI518964B (en) | 2016-01-21 |
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