公开(公告)号：US20130177815A1

公开(公告)日：2013-07-11

申请号：US13822383

申请日：2011-08-19

申请人： Young Jun Kim ,  Yong Nam Jo ,  Min Sik Park

发明人： Young Jun Kim ,  Yong Nam Jo ,  Min Sik Park

IPC分类号： H01M4/133

CPC分类号： H01M4/133 ,  H01M4/0471 ,  H01M4/366 ,  Y02E60/122

摘要： Disclosed are an anode active material, a non-aqueous lithium secondary battery, and a preparation method thereof. The surface of a carbonaceous material is modified without using an electrolyte additive, and the reactivity and structural stability of the surface is improved, thereby obtaining long lifetime characteristics without deteriorating charge/discharge efficiency and rate characteristics when applied as an anode active material of a non-aqueous lithium secondary battery. The anode active material comprises a carbonaceous material, and a coating layer formed on the surface of the carbonaceous material through hetero atom substitution, wherein the hetero atom can be phosphorus (P) or sulfur (S). A side reaction with an electrolyte on the surface of the carbonaceous material is inhibited and the structural stability of the surface is enhanced by forming a coating layer on the surface of the carbonaceous material with a hetero atom such as phosphorus (P) or sulfur (S).

摘要翻译： 公开了负极活性物质，非水系锂二次电池及其制备方法。 在不使用电解质添加剂的情况下改性碳材料的表面，提高表面的反应性和结构稳定性，从而获得长的寿命特性，而不会劣化作为非阳极活性物质的充电/放电效率和速率特性 - 锂二次电池。 负极活性物质包含碳质材料，通过杂原子取代形成在碳质材料表面上的涂层，其中杂原子可以是磷（P）或硫（S）。 与碳质材料表面的电解质的副反应被抑制，并且通过在诸如磷（P）或硫（S）的杂原子在碳质材料的表面上形成涂层来增强表面的结构稳定性 ）。

公开(公告)号：US20130157139A1

公开(公告)日：2013-06-20

申请号：US13819073

申请日：2011-06-15

申请人： Young Jun Kim ,  Yong Nam Jo ,  Min Sik Park

发明人： Young Jun Kim ,  Yong Nam Jo ,  Min Sik Park

IPC分类号： H01M4/36 ,  H01M4/133

CPC分类号： H01M4/133 ,  H01M4/0471 ,  H01M4/366 ,  Y02E60/122

摘要： The disclosure relates to an anode active material, a non-aqueous lithium secondary battery, and a manufacturing method thereof. The anode active material of this disclosure comprises a carbon-based material, and a coating film formed on the surface of the carbon-based material by performing heat treatment using an ammonia-based compound. The coating film may be formed on the surface of the carbon-based material through a thermal decomposition method using 10% or less by weight of the ammonia-based compound with respect to the carbon-based material. Since the surface of the carbon-based material is thermally treated using the ammonia-based compound, side reaction of the carbon-based material with an electrolyte at the surface thereof can be suppressed and structural stability can be enhanced, thereby improving battery lifespan and high-rate capability of a non-aqueous lithium secondary battery.

摘要翻译： 本发明涉及负极活性物质，非水系锂二次电池及其制造方法。 本公开的负极活性物质通过使用氨基化合物进行热处理而形成在碳系材料的表面上的碳系材料和涂膜。 可以通过热分解法在碳系材料的表面上形成涂膜，该热分解方法使用相对于碳系材料为10重量％以下的氨基化合物。 由于碳基材料的表面使用氨基化合物进行热处理，可以抑制碳基材料与其表面的电解质的副反应，并且可以提高结构稳定性，从而提高电池寿命和高 非水性锂二次电池的水合能力。

公开(公告)号：US08932763B2

公开(公告)日：2015-01-13

申请号：US13819073

申请日：2011-06-15

申请人： Young Jun Kim ,  Yong Nam Jo ,  Min Sik Park

发明人： Young Jun Kim ,  Yong Nam Jo ,  Min Sik Park

IPC分类号： H01M4/36 ,  H01M4/133 ,  H01M4/04

CPC分类号： H01M4/133 ,  H01M4/0471 ,  H01M4/366 ,  Y02E60/122

摘要： The disclosure relates to an anode active material, a non-aqueous lithium secondary battery, and a manufacturing method thereof. The anode active material of this disclosure comprises a carbon-based material, and a coating film formed on the surface of the carbon-based material by performing heat treatment using an ammonia-based compound. The coating film may be formed on the surface of the carbon-based material through a thermal decomposition method using 10% or less by weight of the ammonia-based compound with respect to the carbon-based material. Since the surface of the carbon-based material is thermally treated using the ammonia-based compound, side reaction of the carbon-based material with an electrolyte at the surface thereof can be suppressed and structural stability can be enhanced, thereby improving battery lifespan and high-rate capability of a non-aqueous lithium secondary battery.

摘要翻译： 本发明涉及负极活性物质，非水系锂二次电池及其制造方法。 本公开的负极活性物质通过使用氨基化合物进行热处理而形成在碳系材料的表面上的碳系材料和涂膜。 可以通过热分解法在碳系材料的表面上形成涂膜，该热分解方法使用相对于碳系材料为10重量％以下的氨基化合物。 由于碳基材料的表面使用氨基化合物进行热处理，因此可以抑制碳基材料与其表面的电解质的副反应，并且可以提高结构稳定性，从而提高电池寿命和高 非水性锂二次电池的水合能力。