7Jak M J G, Kelder E M, Schoonman J, et al. Lithium ion conductivity of a statically and dynamically compacted nano - structured ceramic electrolyte for Li - ion batteries[J]. J. Electroceramics, 1998,2(2): 121 ~ 134.
8M F Yan. Preparation and properties of TiO2 varistors [J]. Appl. Phys. Lett., 1982,40 (6): 536 - 537.
9Choon - Woo Nahm. The nonlinear properties and stability of ZnO - Pr6O11 - CoO - Cr2O3 - Er2O3 ceramic varistors[J]. Materials Letters,2001,47: 182 - 187.
10Lingbin Kong, Liangying Zhang, Xi Yao. TiO2 based varistors derived from powders prepared by a sol - gel process[J]. Materials Letters, 1997,32: 5 - 8.