A total of 3.1 billion lithium batteries were produced globally in 2008. Six Sigma no longer meets the safety requirement of lithium battery. The ITRI STOBA material allows the lithium batteries have important redundancy time and reached twelve sigma so that when the lithium battery shorts and generates high temperature, it also generates the locking response mechanism and avoids subsequent heat explosion problem to ensure consumer safety.

The main problem of safety for lithium battery comes from rising internal temperature of the battery including improper heating of the battery, excessive charging, and shorting caused by contact of positive and negative materials. When internal temperature continues to rise and cannot be restrained, the separation membrane of positive and negative materials would start to melt, pierce through and resulted in massive current shorting, then the battery would accelerate heating up and temperature rises to 180℃ and triggers decomposition of the positive materials and generates huge heat. When the battery temperature soars instantly, like continuous heating of a pressure cooker with crevice and eventually generating heat explosion, the battery will erupt massive gases and ignite fire or cause explosion.