the info here was very good it seems the
Panasonic-Sanyo NCR18650BF is a kind of HYBRID cell and
"The difference between the new BF and the older B model is that this battery includes the chemical "SiO" or silicon monoxide. In August 2014, the Berkeley National Laboratory found that the addition of SiO can improve the performance of li-ion batteries by up to 20%."
Panasonic-Sanyo NCR18650BF is a kind of HYBRID cell and
"The difference between the new BF and the older B model is that this battery includes the chemical "SiO" or silicon monoxide. In August 2014, the Berkeley National Laboratory found that the addition of SiO can improve the performance of li-ion batteries by up to 20%."
