电阻应变法用于密封电池内压变化的动态检测

External Transducing Measurement of the Internal Pressure in Sealed Battery by Resistance Strain Gauge

报道了采用电阻应变法动态检测密封电池内压变化的实验方法，并以镍氢电池为例，介绍了这一方法在研究电池工艺技术条件与电池充放电性能关系时的具体应用．

A novel method to monitor dynamically the internal pressure of sealed battery with no damage of the battery by using of resistance strain measurement technique is presented. This technique employs the resistence strain gauges in touch of the battery case and to detect the minimal change in the battery deformation due to the increasing internal pressure, electrode expantion or intrenal temperature rise. Application of the technique for the study of the effects of the battery processing factors on the battery performance is described taking Ni MH battery as example.