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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
Lithium diaqua-magnesium catena-borodiphosphate(V) monohydrate, LiMg(H(2)O)(2)[BP(2)O(8)]·H(2)O, at 173 K
Jin-Ru Lin1, Ya-Xi Huang, Yu-Huan Wu
1Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen 361005, Fujian Province, People's Republic of China.
Abstract:
The crystal structure of LiMg(H(2)O)(2)[BP(2)O(8)]·H(2)O consists of tubular structural units, built from tetra-hedral (∞) (1){[BP(2)O(8)](3-)} borophosphate ribbons and (LiO(4))(n) helices running along [001], which are inter-connected by MgO(4)(H(2)O)(2) octa-hedra, forming a three-dimensional network structure with one-dimensional channels along [001] in which the water mol-ecules are located. The water mol-ecule in the channel is significantly displaced by up to 0.3 Å from the special position 6b (..2) to a half-occupied general position. Mg, B and one Li atom all lie on twofold axes. Of the two Li positions, one is at a special position 6b (..2), while the other is at a general position; both are only half-occupied.
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