Charging method of storage battery converting interval constant voltage charger
A constant-voltage charging and storage battery technology, which is applied in secondary battery charging/discharging, battery circuit devices, and secondary battery repair/maintenance, etc. Cycle life, reduced side reactions, increased effectiveness of diffusion processes
Inactive Publication Date: 2008-03-12
ANHUI CHAOWEI POWER
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The current storage battery adopts constant current charging, the charging current is 0.15CA, and it has been charging continuously, so that the H 2 O====H 2 ↑+O 2 There are many side reactions in ↑, which slow down the electrochemical diffusion process. The charging time of constant current charging is long and the charging efficiency is low, which affects the production efficiency of the entire battery. Generally, it needs to be charged for about 20 hours. In this way, it needs to consume more than 2C of electricity, not only The charging efficiency is low and energy is wasted; at the same time, the amount of water loss directly affects the cycle life of the battery. The smaller the charging current, the smaller the water loss, but if the charging current is too small, it will lead to poor capacity recovery performance and poor charging effect. Not good, prolong charging time
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0011] As shown in Figure 1, it is a schematic diagram of the charging process of the battery variable current intermittent constant voltage charging method of the present invention; a1 Charge the battery for the first charging time t a1 , and then stop the first stop time t b1 , and then with the second charging current i a2 Charge the battery for the second charging time t a2 , and then stop the second stop time t b2 , and then with the third charging current i a3 Charge the battery for the third charging time t a3 , and then stop for the third stop time t b3 , repeating the cycle several times, the best embodiment of the present invention is to cycle four times, at the fourth stop time t b4 After that, it has been charged with the fifth constant voltage u a5 Carry out charging until the total charge reaches 1.01-1.05C. The capacity of the battery is expressed in ampere-hours (that is, the product of current and time), and "C" is generally used to indicate the full ca...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The method includes following steps: charging accumulator by first charging current for first charging period, then stopping for first stop time; charging accumulator by second charging current for second charging period, then stopping for second stop time; charging accumulator by third charging current for third charging period, then stopping for third stop time; recycle for some times. Using the method, the invention carried out intermittent charge: using large current to charge accumulator quickly, then stopping charge for a period of time; charge accumulator by small current, then stopping charge for a period of time; recycle for some times; charging accumulator under constant voltage till a certain electric quantity. The method reduces side reaction, increases electrochemical diffusion process, and controls water loss in charging procedure so as to prolong service life.
Description
【Technical field】 [0001] The invention relates to a battery and a charger, in particular to a charger and a charging method for a lead-acid battery of an electric bicycle. 【Background technique】 [0002] The active material of the positive electrode of the lead-acid battery is lead dioxide, the active material of the negative electrode is lead sponge, and the electrolyte is a dilute sulfuric acid solution. +PbO 2 (Positive pole)+2H 2 SO 4 ====2PbSO 4 +2H 2 O (discharge reaction) Its charging chemical reaction is that lead sulfate and water are converted into lead dioxide, sponge lead and dilute sulfuric acid. 2PbSO 4 +2H 2 O====Pb (negative electrode)+PbO 2 (Positive pole)+2H 2 SO 4 (Charging reaction) The rated voltage of a single lead-acid battery is 2.0V. Generally, it is connected in series to 6V and 12V for the starting and lighting of automobiles and motorcycles. The single battery is generally connected in series to 48V, 96V, 110 or 220V for different occasi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCY02E60/12Y02E60/10
Inventor 陈体衔王焕祥周明明
Owner ANHUI CHAOWEI POWER