LITHIUM SECONDARY BATTERY

摘要

PURPOSE:To improve a discharge capacity, an output density and a cycle characteristic by having a spherical carbon material carry negative pole active material. CONSTITUTION:A spherical carbon material is used as a carbon material which is also a lithium carrier by having the spherical carbon material or particularily a spherical carbon material having an optical anisotropy carry negative pole material of lithium metal or lithium ion. The carbon material having the optical anisotropy is preferred to other spherical carbon material. Thus, a lithium battery and its negative pole body of which output density is large and capacity per unit area (weight) is increased and cycle characteristic is improved can be obtained.