The Interrupt Charge Method with Variable Current For VRLA Battery

进一步给出已由我们建立的变电流间歇充电方法研究结果。通过试验说明了充电时采用变电流和间歇的必要性。放电态电池恢复至完全充电态,标准充电方法的充电时间需要1080MIn(电流段583MIn,电压段497MIn),而这方法只需要540MIn(电流段138MIn,电压段402MIn)。已提出适合于这方法的充电器电路。讨论了充电接受能力和快速部分充电的研究思路。The Further research results on the interrupt charge method with variable current were obtained.From some tests.it has been explained that it was necessary with variable current and interruption For charging.For the discharged battery had been restored to Full charge,the charge time was 1080min (current duration 583min and voltage duration 497min)by regular method but it was only 540min (current duration 138min and voltage duration 402min)by this method.The circuit of the charger suited to this charge method had been presented.The research on charge acceptance ability and rapid partial charging had been discussed

Factors inFluencing the positive-plate liFe of valve-regulated lead-acid batteries

从正极活物层（PAM），活物聚集层（AMCl）和腐蚀层（Cl）阐述影响阀控式铅酸（VrlA）蓄电池正极寿命的因素。它包括极板设计、合金元素、铅膏密度和组份、装配压力等。The Factors inFluencing the positive-plate liFe of valve-regulated lead-acid (VRLA) batteries have been disscussed in this paper in terms of positive-activemass layer (PAM ), active-mass collecting layer (AMCL) and corrosion layer (CL).The most important are: plate design; alloy composition; density and components of the paste and assemly compression

A rapid intermittent charge method with variable current for VRLA battery

VrlA蓄电池充电分为两段：先控电流，后控电压。对于完全放电态电池（6-fM-4.0），采用恒电流充电使电池达到85%荷电态，最佳充电电流是0.1C，充电时间需要9H。采用变电流间歇充电，充电时间不足3H，可达到92%以上荷电态。最后采用相同的控电压充电使电池恢复至完全充电态，前者需要9H，后者只需6H。本文已给出变电流间歇充电器的原理电路。There are two charging stages: the first one is a charging current control, and the second is charg-ing voltage control.A fully discharged battery (3-FM-4) can be charged up to 85% SOC (state of charge)at the current rate of 0.1C for 9 hours.If the intermittent charge method with variable current is used for thesame condition, the battery can be charged to 92% SOC for less than 3 hours.Afer the first stage both are.chaopd tmder the same charging condition of the constant voltage to reach a full charge state.As for lhe chare-ing duration of the constant voltage, the former needs 9 hours while the latter just 6 hours.The principle cir-cuits of the intendttent charger with variable curmnt have been shown in this paper

On the inFluence of assembling compression on the property of microglass separator

本文通过实验给出干膜厚度，湿膜厚度，吸酸量，隔膜电阻等各项因素与装配压力的关系，为电池设计提供重要依据。An experiment to determine the inFluence of assembling compres-slon on the property of microglass separator was done.The separator thickness (both in dry and wet state), absorbed acid amount and separator resistance in relationship to assembling compression were studied in detail and the important considerations For VRLA design were proposed

Characteristic Straight Lines For Paste-mixing in Sealed Lead Acid Batteries

表述湿膏密度与加酸量和总水量关系的和膏直线对铅酸蓄电池电极制备是十分重要的。本文给出建立和膏直线的方法,它们与实验数据符合。讨论了和膏直线应用于加酸量对正极(？)电曲线影响的试验设计。实验表明在足够电解液中,5小时放电率的正极活物利用率可达54%。The characteristic straight lines For paste-mixing,showing the relations of we -paste density with the amounts of water and sulFuric acid,were important For the preparation of the e ectrodes in lead acid batteries.The method established these lines was presented,the results were consistent with the experimental data.The application of the characteristic straight lines to design the tests about the eFFects of the acid amounts addition on the discharge curves of the positive electrode was disc issed.It was indicated by experiments that utilization of 54% For active material of positive electrode ould be reached at 5 hours discharge rates in enough electrolyte

Equivalent Circuit For Sealed Lead/Acid Battery

本文按电极反应机理导出密封铅酸蓄电池等效电路。它由电池欧姆电阻r,铅电感l,电极双层电容C_d,电化学反应电阻rr,反应物电容C_A,PbSO_4晶体生成电阻r_C,产物电容C_C和WArbu(？)g阻抗W等八只元件组成。在0.05H2~12.6kHz频率范围内,等效电路计算的阻抗值与电池(6V4AH)实验数据拟合满意,并给出元件值随电池剩余容量变化情况。rI,C_d,rr和C_A变化在剩余容量40%处有一转折点。交流阻抗技术可能成为研究早期容量损失的重要方法。转折点的剩余容量愈低,循环试验的放电深度就愈深,则更好克服早期容量损失。The equivalent circuit For sealed lead/acid battery has been deduced From the mechanism of electrode reaction.It consists of eight elements,namely ohmic resistance of battery RI.lead inductance L, double layer capacitance of electrode Cd .electrochemical reaction resistance Rr,reacta t capacitance C2, Formation resistance of PbSO4 crystals Rc, product capacitance Cc and warburg in pedance W.The impedance values calculated From the equivalent circuit are satisFactorily Fitting to the 'xperimental data For the battery(6V4Ah)in the range of Frequences 0.05Hz-12.6kHz.It has been prov ded that the variations For values of elements are dependent on the residual capacities of the battery.There is a turning point at residual capacity 40% For the variations of RI,Rr.Cd and Cg.AC impedance t ?chnique may become important means For study on the premature capacity loss.The lower the residua capacity relative to the turning point.the deeper do the depth of discharge For cycling test so that the better to overcome the premature capacity loss

表面增强拉曼光谱和红外光谱电化学实验

本文通过硫脲在银电极上吸附和正丙醇在铂电极上氧化的两个具体实例，简要介绍表面增强拉曼散射和红外反射光谱的教学实验内容

Techniques For VRLA Batteries

本文就板栅合金、和膏方程、装配压力、快速充电等方面阐述VrlA蓄电池技术。当Pb—CA合金中锡含量超过0.6%时才可能从循环伏安图观察到锡的阳极溶解,才能起克服早期容量损失的作用。通过加酸量改变铅膏密度,然后再通过和膏方程确定加水量。在和膏后期补水调整铅膏密度是不可取的操作。考虑电池充放电过程极板厚度增加将引起装配压力增大,建议初始装配压力设定在40kg/dM--2。我们首次建立变电流间歇充电方法,它是一种快速充电方法。对于完全放电态电池只需充电时间190MIn,则可得92%放电容量。Techniques For VRLA batteries such as grid alloy paste-mixing equation .assembling pressure and rapid charge were explained.Only when Sn content in Pb-Ca alloy was more than 0.6wt% ,its anodic dissolution of Sn could been observed From cyclic voltammogram and had eFFect to eliminate the premature capacity loss.The wet-paste density was changed by the amount of sulFuric acid and the amount of water in the oxide.It was determined by the paste-mixing equation.Adjusting wet - paste density by adding water towards the end of the mixing was bad operation.Initial assembling pressure was suggested at 40kg/dm2 because assembling pressure would be increased by increment of electrode thickness in the process of charge and discharge.The interrupt charge with variable current had been Firstly established.This was a rapid charge method.Charge time was only 190 minutes For the discharged battery and the discharge capacity of 92% could be obtained

Present Situation of Sealed Lead-Acid Batteries Used in UPS(12V65Ah & 12V100Ah)

本文概述了uPS用密封铅酸蓄电池的技术水平,以及改进电池寿命的技术报导。A review with 13 reFerences is given on the technique levels of the sFealed lead-acid batteries used in UPS and the technique reports related to improve the battery liFe