发明名称 |
Liquid low-sodium silicate electrolyte used for a storage battery and manufactured by magnetization process, and the usage thereof |
摘要 |
The present invention is related to a liquid low concentration sodium-containing silicate solution as electrolyte for lead-acid storage batteries and its applications. Such an electrolyte is prepared by mixing a silica gel containing 40~60 wt % SiO2, the weight units of such a silica gel are 5~15; add 15-25 weight units water and stir until the concentration of the mixture is 0.65~0.85 0Be' measured by a Baumé densimeter, adjusting the pH value of this mixture to 1-4 using inorganic acid and magnetizing the mixture under 1000-6000 Gauss magnetic field for 5-10 minutes, stir the magnetized mixture until the viscosity of the mixture is less than 0.02 poise and finally obtain a liquid low concentration sodium-containing silicate solution. It can be used as electrolyte or activation solution for common or special lead-acid storage batteries. The lead-acid storage batteries using above electrolyte showed increased specific energy density up to more than 53 W/Kg. The cycle life is increased from 350 cycles for common lead-acid storage batteries to 400 cycles and even more than 1000 cycles for present batteries. Present batteries can be operated properly in a wide temperature range from -50° C.~+60° C.
|
申请公布号 |
US7501205(B2) |
申请公布日期 |
2009.03.10 |
申请号 |
US20030480282 |
申请日期 |
2003.12.11 |
申请人 |
FENG YUESHENG;HAN DIAN;FENG YIFENG |
发明人 |
FENG YUESHENG;HAN DIAN;FENG YIFENG |
分类号 |
H01M6/04;H01G9/035;H01M10/08;H01M10/10 |
主分类号 |
H01M6/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|