SYNTHESIS OF LITHIUM-MANGANESE OXIDES AS A CATHODE FOR LITHIUM SECONDARY BATTERIES.

合成锂锰氧化物作为锂二次电池的阴极。

• 批准号: 06453124
• 负责人: MASAKI Yoshio
• 金额: $ 3.14万
• 依托单位: SAGA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06453124/
• 关键词: LITHIUM SECONDARY BATTERY; MANGANESE; CATHODE MATERIAL; MELT-IMPREGNATION; LITHIUM NITRATE; LITHIUM HYDROXIDE; LITHIUM-ION CELL; SPINEL; 硫酸リチウム

We have developed the preparation procedures of cathode materials(Lithium Manganese oxides)for lithium secondary batteries by melt-impregnation method developed by us. Two types of materials, 1)spinel LiMn_2O_4 and 2)Li_<0.33>MnO_<2'> were mainly studied. It is found that two types of lithium compounds, LiNO_3 and LiOH,are available to the melt impregnation method. In the course of study, it is clarified that the melt-impregnation method has following excellent features, which allow us to prepare desirable ceramic materials used for various purpose. a)Composition of product is controlled easily. b)Particle size of product can be controlled by the selection of raw material. c)Specific surface area of product can be controlled. d)Tapping density of product can be controlled.We have also found that stoichiometric LiMn_2O_4 is transformed to stable compound with rechargeable capacity of 120 mAh/g during the cycling. It shows that stoichiometric LiMn_2O_4 is useful materials as a cathode of Lithium-Ion batteries.

我们已经通过美国开发的熔体爆裂方法开发了锂二级电池的阴极材料（锂锰氧化物）的制备程序。两种类型的材料，1）Spinel limn_2O_4和2）Li_ <0.33> Mno_ <2'>主要研究了。发现两种类型的锂化合物Lino_3和LiOH可用于熔融方法。在研究过程中，澄清的是，熔体浸渍方法具有以下出色的特征，这使我们能够准备用于各种目的的理想陶瓷材料。 a）产品的组成很容易控制。 b）产品的粒径可以通过选择原材料来控制。 c）可以控制产品的特定表面积。 d）可以控制产品的攻丝密度。我们还发现，在循环过程中，化学计量limn_2o_4被转化为稳定的化合物，可充电容量为120 mAh/g。它表明化学计量limn_2o_4是锂离子电池的阴极的有用材料。

项目成果

M.Yoshio: "Three V or 4V Li-Mn Composite as a Cathodes of Li Batlerles Prepared by LiNO_3 Method as a Li Source." J.Power Sources. 54. 483-488 (1995)

M.Yoshio：“以 LiNO_3 法作为锂源制备的三 V 或 4V Li-Mn 复合材料作为 Li Batlerles 的阴极”。

Y.Xia, H.Takeshige, H.Noguchi, and M.Yoshio: "Studies on a Li-Mn-O spinel system (obtained by melt-impregnation)as a cathode for 4V lithium batteries. Part I.Synthesis and electrochemical behavior of Li_XMn_2O_4." J.Power Sources. 56. 61-67 (1995)

Y.Xia、H.Takeshige、H.Noguchi 和 M.Yoshio：“Li-Mn-O 尖晶石体系（通过熔融浸渍获得）作为 4V 锂电池阴极的研究。第一部分：合成和电化学行为

Y.Xia: "Studies on Li-Mn-O spinel system(obtained from meltimpregnation)as a cathode for 4V lithium batteries.Part II.Optimum spinel from _Y-MnOOH." J.Power Sources. 57. 125-131 (1995)

Y.Xia：“Li-Mn-O尖晶石体系（通过熔融浸渍获得）作为4V锂电池阴极的研究。第二部分。_Y-MnOOH的最佳尖晶石。”

M.Yoshio: "MANGANESE DXIDES FOR 3-VOLT LITHIUM CELL CATHODE" Progress in Batteries & Battery Materials. 14. 87-100 (1995)

M.Yoshio：“用于3伏锂电池阴极的锰氧化物”在电池方面的进展

M.Yoshio: "Three V or 4V Li-Mn composite as cathode in Li batteries prepared by LiNO_3 method as Li Source" Journal of Power Sources. 54. 483-486 (1995)

M.Yoshio：“以LiNO_3法作为锂源制备的锂电池中作为正极的3V或4V Li-Mn复合物”《电源杂志》。