体电导率 meaning in Chinese

cubic conductance
volume conductivity

Thirdly , mg ~ ( 2 + ) was doped to the lattice to improve the electric conduction of the cathode material lifepo4 . due to mg ~ ( 2 + ) doped enter into the position of lithium , the lattice parameter occurred to change but the crystallinity of the cathode material lifepo4 is excellent and the initial discharge capability could get 130mah . g - 1
以上说明,采用适当的合成方法,细化lifepo _ 4的晶粒尺寸、提高lifepo _ 4的表层及体电导率,是改善橄榄石型lifepo _ 4锂离子正极材料电化学性能的有效途径。