1285451 ·'， 4 ， 九、發明說明： 【發明所屬之技術領域】 本發明係與電池有關，特別是指一種電池充電方法。 【先前技術】 5 按，鐘離子(Li-ion)、鋰高分子或其他以經為基礎的化 學材料電池，其重量輕，能量密度大且不會構成環保問題， 已逐漸成為可再充電電池的主流。例如鐘鍺(Li-C0)電池可 長日守間連續使用的特性就適用於行動電話，而鋰鐵磷酸 (Li-FeP〇4)電池的大電流充放笮特性，則適合使用於電動 10 工具。 然而，鋰電池的低可靠度卻是一大問題，傳統的充電 方式無法將其充飽，使用沒多久電池即會開始老化。其老化 原因在於電極的孔洞被堵塞導致化學反應面積降低，電池 輸入/輸出的阻抗因而變大，因此在充電時，充電電流流過 15時會產生一壓降Δν(虛擬電壓)，而所偵測到的電池電壓v > 即會包含此虛擬電壓ν=νΒ+Δν，其中VB才是真正的電 池電壓。另外，此虛擬電壓Δν在充電電流消失時，還會殘 』。卩知，除非是以放電的方式才能完全消除。由此種種可 知，習知之充電方式是不但無法將電池充飽，還會縮短電 20 池的哥命。 以老化的行動電話電池為例，充飽電時是41V，一般 充電器是在有充電電流下量測到電池電壓V>=4.1V時，即 認定電池已充滿而停止充電。然而，電池取下後直接量測就 變成4.0V，放電50mA —小段時間後電池電壓即降至3 6v 4 1285451 或更低％這表=電池以傳統充電方式是無法真正的充飽。 ，傳統充電器是以直流電源充電，電池内穩定規律的化 f反應就容胃在電極±產生職而堵塞孔洞，造成壽命的 縮短。 5 有^於上述缺點，本案發明人乃經過不斷之試作與實 驗後，才終有本發明之產生。 ° ^ 【發明内容】 «Θ 本發明之主要目的在於提供-種電池充電方法，1可 10確實將電池充電充飽。 本發明之次一目的在於提供一種電池充電方法，其較 不易縮短電池的壽命。 緣是，為了達成上述目的，依據本發明所提供之一 種電池充電方法，包含有下列步驟：A)決定出對電池充電 I5之二標準電壓，分別為低標準電壓V1及高標準電壓 持續制電池電壓VB，並在VB符合下述條件則)或叫 或B3)時，分別採取各該條件之充電方式：b1)vb<=vi:以 較小且穩定之電流充電；B2) V1<VB<V2••以較大且穩定之 電流，依間隔預定時間的脈衝方式充電，並於充電預定時 20間後暫停充電，並使電池短暫放電，放電後偵測電壓vB. B3) V2<=VB:以較小且穩定之電流充電，依間隔預定時間 的脈衝方式充電，並於充電預定時間後停止充電。藉此，可 有效的將電池充電充飽3並較不易縮短電池壽命。 5 1285451 【實碜方式】 為了詳細說明本發明之技術特點所在，茲舉以下之一 較佳實施例並配合圖式說明如后，其中： 第一圖係本發明一較佳實施例之第一電路方塊圖。 ，二圖係本發明一較佳實施例之第一電路結構圖。 第三圖係本發明一較佳實施例之第二電路方塊圖。 第四圖係本發明一較佳實施例之第二電路結構圖。 本發明一較佳實施例所提供之一種電池充電 要包含有下列步驟： ’ 5 A) 決定出對電池充電之二標準電壓，分別為低標 電壓VI及高標準電壓V2; 丁 B) 持續偵測電池電壓VB，並在VB符合下述條件bi) 或B2)或B3)時，分別採取各該條件之充電方式： B1)VB<=V1··以較小且穩定之電流充電； —士 B2) V1<VB<V2··以較大且穩定之電流，依間隔 預疋時間的脈衝方式充電，並於充電預定時間後暫停充電， 並使電池短暫放電，放電後偵測電壓VB; B3)V2<=VB··以較小且穩定之電流充電，依間隔 預定時間的脈衝方式充電，並於充電預定時間後停止充電。 月ί述之方法中，在步驟B1)中，當電池處於過度放電階 段時，電池電壓VB<=V1,此時電池處於較不穩定的狀況， 為了避免内部劇烈的化學反應而損壞電池，故先以較小且 穩定的電流充電。而在步驟B2)中，V1<vb<V2，此時電池 處於較穩定的狀況，可使用較大且穩定的電流充電，而使 1285451 ,用。脈衝方式來充電，可擾動電池内部的化學反應，使其電 極上車父不易產生沉澱而堵塞孔洞，另外，使電池短暫放電 (逆向化學反馮）亦有助於消除電池老化所產生的虛擬電 壓。而在步驟B3)中，,V2<VB，已接近充飽狀態，此時則以 5較小且穩定的電流依脈衝方式進行充電，可達到確實充飽 的效果。 ° 3 又5前述之方法中，在步驟B1)中，亦可依間隔預定時 間的脈衝方式充電，並於充電預定時間後暫停充電，並使 電池短暫放電藉以測得電壓VB。 10 此外，前述之方法中，亦可於步驟A)中5將V1-V2更 進步區分為vl_Vx以及νχ_γ2;並於步驟B2)中，在 Vl<VB<=Vx時，係以較大且穩定的電流充電，而在 Vx<VB<V2 4，以|父大且穩定之電流，依間隔預定時間的 脈衝方式充電。而可具有更快的充電速度。 15 睛苓閱第一圖至第二圖，係為實施上述充電方法所舉 例之-種充電控制電路10，纟要由一交換式電源供應器 (Switching P〇wer Supply)11、一微控制器（m^〇 C〇ntr〇ller)13、一光耦合器（Photo_c〇upler)15、一電流偵測 器17、以及一開關18所組成。該交換式電源供應器u'係 2〇用以提供充電電源，且該交換式電源供應器n具有一脈衝 寬度調節器111。該微控制器13具有一脈衝寬度調節 (PWM_PUlse WidthMoudlation)輸出端14,並連接於該光耦 合器15,該光耦合器15係連接於該脈衝寬度調節器m， 透過該光搞合裔15控制該脈衝寬度調節器I〗〗_以$制 1285451 ο 該交換式電源供應器11。該電流偵測器17連接於該交換式 電源供應器11。該開關18係連接於該電流偵測器17,並且 用以連接待充電電池19 5該開關18係用以快速控制充電電 流開/關。藉由第一圖至第二圖所揭示之電路結構，可使用 交流轉直流(AC/DC)的架構，透學該微控制器的控制來達 到前述充電方法。 ° 請再參閱第三圖至第四圖，係為實施上述充電方法所 ，例之另一種充電控制電路2〇,主要係透過一變壓器以來 提供充電電源，且具有一微控制器23,該微控制器幻呈 一脈衝寬度調節(PWM)輸出端24,並連接於一直^ j f1(DC t〇 DC C-erter)255 25控制輸出的電流做為充電電流。 、抑 由上可知，本發明所揭露之對電池充電的 效的將電池充電充飽，並較不易縮短電池壽命。去，可有 本實施例中所例舉之電路僅之 制本發日狀巾料·圍，魏之料元料^用:限 亦應為本發明所涵蓋。 曰換及應用: 15 1285451 【圖式簡單說明】 第一圖係本發明一較佳實施例之第一電路方塊圖。 第二圖係本發明一較佳實施例之第一電路結構圖。 第三圖係本發明一較佳實施例之第二電路方塊圖。 5 第四圖係本發明一較佳實施例之第二電路結構圖。 【主要元件符號說明】 10充電控制電路 11交換式電源供應器 ίο 13微控制器 15光麵合器 18開關 20充電控制電路 21變壓器 111脈衝寬度調節器 14脈衝寬度調節輸出端 17電流偵測器 19待充電電池 23微控制器 15 24脈衝寬度調節輸出端 25直流/直流轉換器1285451 · ', 4, IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a battery, and more particularly to a battery charging method. [Prior Art] 5 Press, Li-ion, lithium polymer or other chemical-based battery materials, which are light in weight, high in energy density, and do not pose environmental problems, have gradually become rechargeable batteries. Mainstream. For example, the Li-C0 battery can be used continuously for long-term use, and the lithium-iron phosphate (Li-FeP〇4) battery is suitable for electric 10 tool. However, the low reliability of lithium batteries is a big problem. The traditional charging method can't fully charge them. It will take a long time to start aging. The reason for the aging is that the pores of the electrode are blocked, the chemical reaction area is lowered, and the input/output impedance of the battery is thus increased. Therefore, when charging, when the charging current flows through 15, a voltage drop Δν (virtual voltage) is generated, and the detected The measured battery voltage v > will contain this virtual voltage ν = ν Β + Δν, where VB is the true battery voltage. In addition, this virtual voltage Δν is also dissipated when the charging current disappears. I know that it can be completely eliminated unless it is discharged. As can be seen from this, the conventional charging method is not only unable to fully charge the battery, but also shortens the life of the battery. Take the aging mobile phone battery as an example. When the battery is fully charged, it is 41V. Generally, when the battery voltage V>=4.1V is measured under the charging current, the battery is fully charged and stops charging. However, after the battery is removed, the direct measurement becomes 4.0V, and the discharge is 50mA. After a short period of time, the battery voltage drops to 3 6v 4 1285451 or lower. This table = the battery cannot be fully charged by the traditional charging method. The traditional charger is charged by the DC power supply, and the internal stability of the battery f reaction allows the stomach to block the hole in the electrode ± the job, resulting in shortened life. 5 With the above shortcomings, the inventor of the present invention has finally produced the invention after continuous trials and experiments. ° ^ [Summary of the Invention] « The main purpose of the present invention is to provide a battery charging method, and the battery can be fully charged. A second object of the present invention is to provide a battery charging method which is less prone to shorten the life of the battery. Therefore, in order to achieve the above object, a battery charging method according to the present invention includes the following steps: A) determining a standard voltage for charging the battery I5, respectively, for a low standard voltage V1 and a high standard voltage to continuously manufacture the battery Voltage VB, and when VB meets the following conditions) or B3), respectively, the charging mode of each condition is taken: b1) vb <=vi: charging with a small and stable current; B2) V1 < VB < V2•• Charges with a large and stable current, pulsed at predetermined intervals, and suspends charging after 20 minutes of charging, and temporarily discharges the battery. After discharge, the voltage is detected vB. B3) V2<=VB : Charging with a small and stable current, charging in a pulsed manner for a predetermined time interval, and stopping charging after a predetermined charging time. Thereby, the battery can be fully charged and fully charged, and the battery life is not easily shortened. 5 1285451 [Embodiment] In order to explain in detail the technical features of the present invention, one of the following preferred embodiments will be described with reference to the following drawings, wherein: the first figure is the first embodiment of the present invention. Circuit block diagram. The second figure is a first circuit structure diagram of a preferred embodiment of the present invention. The third figure is a block diagram of a second circuit of a preferred embodiment of the present invention. The fourth figure is a second circuit configuration diagram of a preferred embodiment of the present invention. A battery charging according to a preferred embodiment of the present invention includes the following steps: ' 5 A) determining the standard voltage for charging the battery, respectively, the low standard voltage VI and the high standard voltage V2; D) B) continuous detection Measure the battery voltage VB, and when VB meets the following conditions bi) or B2) or B3), respectively adopt the charging mode of each condition: B1) VB<=V1··charge with a small and stable current; B2) V1<VB<V2·· is charged with a large and stable current according to the pulse mode of the interval pre-twisting time, and suspends charging after a predetermined charging time, and temporarily discharges the battery, and detects the voltage VB after discharging; B3 V2<=VB·· is charged with a small and stable current, charged in a pulsed manner for a predetermined time interval, and stops charging after a predetermined charging time. In the method described in the month, in the step B1), when the battery is in the overdischarge phase, the battery voltage VB<=V1, the battery is in a relatively unstable state, and the battery is damaged in order to avoid an internal severe chemical reaction. Charge first with a small and stable current. In step B2), V1 <vb<V2, at this time, the battery is in a relatively stable condition, and can be charged with a large and stable current, and is used for 1285451. The pulse mode is used to charge, which can disturb the chemical reaction inside the battery, so that the electrode on the electrode is less likely to precipitate and block the hole. In addition, the short discharge of the battery (reverse chemical anti-von) also helps to eliminate the virtual voltage generated by the battery aging. . In step B3), V2 < VB is near the full state, and at this time, charging is performed in a pulsed manner with a small and stable current of 5, so that the effect of full filling can be achieved. In the above method, in the step B1), the battery may be charged in a pulsed manner at a predetermined time interval, and the charging is suspended after a predetermined charging time, and the battery is briefly discharged to measure the voltage VB. In addition, in the foregoing method, V1-V2 can be further divided into vl_Vx and νχ_γ2 in step A); and in step B2), in Vl <VB<=Vx, it is larger and stable. The current is charged, and at Vx < VB < V2 4, with a | father's large and stable current, charged in a pulsed manner at predetermined intervals. It can have a faster charging speed. 15 The first to second figures are the charging control circuit 10 exemplified by the above charging method, and are mainly provided by a switching power supply (Switching P〇wer Supply) 11, a microcontroller. (m^〇C〇ntr〇ller) 13, an optical coupler (Photo_c〇upler) 15, a current detector 17, and a switch 18. The switching power supply unit is configured to provide a charging power source, and the switching power supply unit n has a pulse width adjuster 111. The microcontroller 13 has a pulse width adjustment (PWM_PUlse WidthMoudlation) output 14 and is connected to the optical coupler 15. The optical coupler 15 is connected to the pulse width adjuster m, and is controlled by the light. The pulse width adjuster I 〗 _ is made of $1,857,451. The switched power supply 11 is provided. The current detector 17 is connected to the switching power supply 11. The switch 18 is connected to the current detector 17 and is used to connect the battery to be charged 19 5 . The switch 18 is used to quickly control the charging current on/off. With the circuit structure disclosed in the first to second figures, the AC/DC architecture can be used to control the microcontroller to achieve the aforementioned charging method. Please refer to the third to fourth figures, in order to implement the above charging method, another charging control circuit 2 〇, mainly provides a charging power source through a transformer, and has a microcontroller 23, the micro The controller singularly presents a pulse width modulation (PWM) output terminal 24 and is connected to the current of the control output of 255 25 DC 〇 DC C-erter as the charging current. It can be seen from the above that the charging of the battery disclosed in the present invention saturates the battery and is less likely to shorten the battery life. For example, the circuit exemplified in the present embodiment can be used only for the purpose of the present invention. The use of the material is limited to the present invention.曰Various Application and Application: 15 1285451 BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a block diagram of a first circuit of a preferred embodiment of the present invention. The second figure is a first circuit configuration diagram of a preferred embodiment of the present invention. The third figure is a block diagram of a second circuit of a preferred embodiment of the present invention. 5 is a second circuit configuration diagram of a preferred embodiment of the present invention. [Main component symbol description] 10 charging control circuit 11 switching power supply ίο 13 microcontroller 15 light surface combiner 18 switch 20 charging control circuit 21 transformer 111 pulse width adjuster 14 pulse width adjustment output terminal 17 current detector 19 battery to be charged 23 microcontroller 15 24 pulse width adjustment output 25 DC / DC converter