公开(公告)号：KR1020110054888A

公开(公告)日：2011-05-25

申请号：KR1020090111690

申请日：2009-11-18

Applicant: 현대자동차주식회사 ,  전남대학교산학협력단

Inventor： 김재국 ,  우철홍 ,  최은석 ,  임진섭 ,  김동한 ,  안승호 ,  안균영 ,  김진욱 ,  김동건 ,  정병조 ,  김지현

IPC: H01M4/04 ,  H01M10/05

Abstract: PURPOSE: A process for manufacturing a negative electrode material for a lithium secondary battery is provided to manufacture various phosphate-based negative electrode materials without thermal process of high temperature and to reduce the time required for whole process. CONSTITUTION: A process for manufacturing a negative electrode material for a lithium secondary battery includes the steps of: mixing transition metal compounds dissolved in distilled water with poly acid phosphate-based compounds to prepare a mixed solution; stirring the mixed solution to prepare a precipitate by a co-precipitation method; drying the precipitate to a temperature of 50-80 °C; and heat-treating the dried material at a temperature of 300-500 °C.

Abstract translation: 目的：提供一种锂二次电池用负极材料的制造方法，可以制造不含高温热处理的各种磷酸系负极材料，能够缩短整个工序所需的时间。 构成：用于制造锂二次电池用负极材料的方法包括以下步骤：将溶解在蒸馏水中的过渡金属化合物与聚酸式磷酸酯类化合物混合以制备混合溶液; 搅拌混合溶液，通过共沉淀法制备沉淀物; 将沉淀物干燥至50-80℃的温度; 并在300-500℃的温度下对干燥的材料进行热处理。

公开(公告)号：KR1020110041813A

公开(公告)日：2011-04-22

申请号：KR1020090098810

申请日：2009-10-16

Applicant: 현대자동차주식회사 ,  전남대학교산학협력단

Inventor： 안승호 ,  김사흠 ,  김재국 ,  김동한 ,  임진섭 ,  최은석 ,  우철홍

IPC: H01M4/58 ,  H01M4/04 ,  H01M10/05

Abstract: PURPOSE: A negative active material composite for a lithium rechargeable battery is provided to prevent the generation of severe irreversible discharge capacity in initial charge-discharging, thereby preventing the degradation of capacity and performance of the lithium rechargeable battery. CONSTITUTION: A negative active material composite for a lithium rechargeable battery is formed by mixing a nitrate transition metal lithium compound into a negative active material with severe irreversible discharge capacity in a proper ratio, wherein the nitrate transition metal lithium compound is formed by adding transition metal atom for imparting electroconductivity to lithium nitride(Li3N). The negative active material composite for a lithium rechargeable battery is configured to reduce an initial irreversible generation capacity.

Abstract translation: 目的：提供一种用于锂可再充电电池的负极活性材料复合材料，以防止在初始充电放电中产生严重的不可逆放电容量，从而防止锂可充电电池的容量和性能的劣化。 构成：通过将硝酸盐过渡金属锂化合物以适当的比例将硝酸盐过渡金属锂化合物与具有严重不可逆放电容量的负极活性物质混合形成，其中通过添加过渡金属形成硝酸盐过渡金属锂化合物 用于赋予氮化锂（Li 3 N）导电性的原子。 用于锂可再充电电池的负极活性材料复合物被配置为降低初始不可逆发电量。