| abstract |
The main object of the present invention is to provide in compound as main component is made using the lithium sulfide useful as positive active material for lithium secondary battery, anode utilization rate height and the new material with excellent charge-discharge characteristic with high power capacity and then with good cycle characteristics.A kind of lithium sulfide iron carbon complex, which is characterized in that it is comprising complex lithium, iron, sulphur and carbon as constitution element, and it includes lithium sulfide (Li 2 S) as main phase, and by by powder x-ray diffraction obtain based on Li 2 The crystallite dimension that the half breadth of the diffraction maximum in (111) face of S calculates is below 50nm. |