초록

탄소나노소재의 분자 제어 및 기능화를 통해서 전극/전해질 계면에서 분자 수준으로 리튬 이온 간의 상호 작용을 제어함으로써 리튬 이온 저장률과 이동도를 동시에 향상시켜서 고출력 리튬 이차전지용 음극 소재를 개발하고자 함
(출처 : 보고서 요약서 3P)

Abstract ▼

□ Purpose of the Research and development

o By using the synthesis and designing process of various ionic liquid, carbon nano material can be functionalized in self-assembly. through these steps, interaction between the lithium ion is controlled on electrode/electrolyte surface in molecular l

□ Purpose of the Research and development

o By using the synthesis and designing process of various ionic liquid, carbon nano material can be functionalized in self-assembly. through these steps, interaction between the lithium ion is controlled on electrode/electrolyte surface in molecular level. The final goal is developing high performance anode material which is using lithium secondary battery by improving the lithium ion storage rate and mobility.

o First step : Synthesizing and designing various ionic liquids to functionalize carbon nano material, and Investigating the interaction between carbon nanomaterial and lithium ion and its fundamental electrochemical property.

o Second step : By adopting various functional group and complexation between carbon nano tube and graphene, electrochemical property will be improved.

o Third step : By controlling the chemical composition of carbon nano material and its high-dimensional structure and complexation carbon nano material with other materials, electrochemical property will be increased as a target performance

□ Contents of the Research and development

o Step 1 : Synthesis and designing ionic liquid to control the interaction between carbon nano material and lithium ion in molecular level
- Interaction Modeling between ionic liquid and lithium ion : Computation bond energy and structure between ionic liquid and lithium ion by using molecular modeling
- Control the ionic liquid at cation : synthesize ionic liquid such as imidazolium or pyridinum family
- Control the ionic liquid at anion : synthesize the ionic liquid with anion such as BF4-, PF6-, TFSI-, CH3SO4-, SO3-
- Adopt functional group in ionic liquid : adopting functional group such as -OH, -COOH,
-vinyl
- Synthesize functional ionic liquid : zwitter ionic liquid, ionic liquid polymer
- Analysis of spectroscopic and electrochemical property of ionic liquid : > 4V E.W., 1×10-1S/m (25oC)

o Step 2 : Control the electrochemical and physical property of Graphene with N doping method and adopting various functional group in molecular level.
- Synthesize N doped graphene : control the amount of doping material, analysis of the electrochemical property followed by the amount of doping material
- Adopt functionl group in graphene : synthesize carbon nano tube including - COOH, -NH2,
-SO3H group, analysis of the electrochemical property followed by the functional group
- Analysis of spectroscopic and electrochemical property of advanced graphene
- Cell performance : Initial coulombic effieciency 80%, For 0.1C 5C, 70% >250 mA/g Discharge capacity (0.1C), Life cycle of 75 % at 100 times (0.1C)

o Step 3 : Development for high performance anion material by complexation of carbon nano structures and generating compounds between carbon nano material and layered structure material
- Optimization the compounds between carbon nano material and layered structure material
- Experiment for in-situ spectroscopy of new electrode material : To Interprete Energy storage mechanism by analyzing the change of structure and dynamics
- Cell performance : Final goal is improvement in full cell performance, for commercial graphite New material, For 0.5C 5C, 75%, >1000 mAh/cc Discharge capacity (0.1C).

□ Expected effect of the Research and development

o In order to replace graphite which is using as anode in Lithium secondary batterty, high performance electrode materials such as graphene representative of functional carbon nano material are developed. Through these steps, secure sourcres of energy storage material technology for low-carbon green growth technologies.

o By analyzing the synthesis process and property of various ionic liquid to functionalize carbon nano matieral, ionic liquids can be developed which are improving ion diffusion and dissolution effectively. Futhermore, it is able to be applied for functionalization of electrode material and planning electrochemical binder or electrolyte.

o Functionalized carbon nano material with ionic liquid has huge ripple effect including lithium secondary battery, supercapacitor, fuel cell, solar battery, bion sensor, actuator. Also, it can be a core technology for future growth engine industry and possible to create a high value-added industries.

o Carbon nano material based high power lithium secondary battery can be applied to next generation mobile electronic equipment, hybrid vehicle, Plug-in HEV, fuel cell automobile, auxiliary power system for fuel cell automobile, memory backup, auxiliary power system for wind power generation, solar energy storage device, military source of energy, source of energy for space.
(출처 : Summary 6P)

목차 Contents

• 표지 ... 1제출문 ... 2보고서 요약서 ... 3요 약 문 ... 4Summary ... 6목차 ... 8Index ... 9제1장 연구개발과제의 개요 ... 10 제1절 연구 목표에 대한 기술 ... 10 제2절 단계·연차別 세부 내용 ... 11제2장 국내외 기술개발 현황 ... 13 제1절 1단계, 2010∼2012年 기술개발 현황 ... 13 제2절 2단계, 2012∼2014年 기술개발 현황 ... 18 제3절 3단계, 2014∼2016年 기술개발 현황 ... 22제3장 연구개발수행 내용 및 결과 ... 25 제1절 진행현황 요약 ... 25 제2절 연구개발 수행 내용 및 결과 ... 26 제3절 연구개발 성과 ... 94제4장 목표달성도 및 관련분야에의 기여도 ... 95 제1절 1단계 2010- 2012年 달성도 ... 95 제2절 2단계 2012- 2014年 달성도 ... 95 제3절 3단계 2014- 2016年 달성도 ... 96제5장 연구개발성과의 활용 계획 ... 97 제1절 연도別 활용계획 세부내용 ... 97제6장 연구개발과정에서 수집한 해외과학기술정보 ... 101제7장 연구시설·장비 현황 ... 102제8장 참고문헌 ... 103끝페이지 ... 103