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A Lithium‐Rich Compound Li 7 Mn(BO 3 ) 3 Containing Mn 2+ in Tetrahedral Coordination: A Cathode Candidate for Lithium‐Ion Batteries
Author(s) -
Afyon Semih,
Wörle Michael,
Nesper Reinhard
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201307655
Subject(s) - lithium (medication) , cathode , ion , chemistry , block (permutation group theory) , crystallography , materials science , combinatorics , organic chemistry , medicine , endocrinology , mathematics
Filled to capacity : Li 7 Mn(BO 3 ) 3 is lithium‐rich and fulfills the prerequisites for a high‐capacity cathode for Li‐ion batteries. It contains a framework of MnO 4 tetrahedra (pink) and BO 3 3− ions (B green, O red, Li black). By employing a nano‐composite to enhance electronic conductivity, a first charge capacity of 280 mAh g −1 , and a specific energy of 1135 W h kg −1 are obtained within 4.7–1.7 V at a rate of 10 mA g −1 .