Reduction of Grain Boundary Resistance of La<sub>0.5</sub>Li<sub>0.5</sub>TiO<sub>3</sub> by the Addition of Organic Polymers
Iker Boyano,
Aroa R. Mainar,
J. Alberto Blázquez,
Andriy Kvasha,
Miguel Bengoechea,
Iratxe de Meatza,
Susana García-Martín,
Alejandro Varez,
Jesus Sanz,
Flaviano García-Alvarado
Affiliations
Iker Boyano
CIDETEC, Basque Research and Technology Alliance (BRTA), P Miramón 196, 20014 Donostia-San Sebastián, Spain
Aroa R. Mainar
CIDETEC, Basque Research and Technology Alliance (BRTA), P Miramón 196, 20014 Donostia-San Sebastián, Spain
J. Alberto Blázquez
CIDETEC, Basque Research and Technology Alliance (BRTA), P Miramón 196, 20014 Donostia-San Sebastián, Spain
Andriy Kvasha
CIDETEC, Basque Research and Technology Alliance (BRTA), P Miramón 196, 20014 Donostia-San Sebastián, Spain
Miguel Bengoechea
CIDETEC, Basque Research and Technology Alliance (BRTA), P Miramón 196, 20014 Donostia-San Sebastián, Spain
Iratxe de Meatza
CIDETEC, Basque Research and Technology Alliance (BRTA), P Miramón 196, 20014 Donostia-San Sebastián, Spain
Susana García-Martín
Inorganic Chemistry Department, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
Alejandro Varez
Department of Materials Science and Engineering, Universidad Carlos III de Madrid, Avda. de la Universidad 3, Leganés, 28911 Madrid, Spain
Jesus Sanz
Department of Ionic Solids, Instituto de Ciencia de Materiales (CSIC) Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain
Flaviano García-Alvarado
Chemistry and Biochemistry Department, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, 28668 Madrid, Spain
The organic solvents that are widely used as electrolytes in lithium ion batteries present safety challenges due to their volatile and flammable nature. The replacement of liquid organic electrolytes by non-volatile and intrinsically safe ceramic solid electrolytes is an effective approach to address the safety issue. However, the high total resistance (bulk and grain boundary) of such compounds, especially at low temperatures, makes those solid electrolyte systems unpractical for many applications where high power and low temperature performance are required. The addition of small quantities of a polymer is an efficient and low cost approach to reduce the grain boundary resistance of inorganic solid electrolytes. Therefore, in this work, we study the ionic conductivity of different composites based on non-sintered lithium lanthanum titanium oxide (La0.5Li0.5TiO3) as inorganic ceramic material and organic polymers with different characteristics, added in low percentage (0.5Li0.5TiO3.
