초록

III. 연구개발의 내용 및 범위
○ 기존 리튬이온전지 소재의 특성 개선을 통해 개발된 50Ah급 셀을 이용하여 V2G용 대용량 전지팩(16kWh급) 개발
○ 50Ah급 대용량 전지용 고안전성 올리빈계 양극 소재 (방전용량 840mWh/cc 이상) 및 고출력 금속복합계 음극소재 (5C 충전용량 350mAh/g 이상)와 이를 적용한 V2G용 에너지저장시스템에 적합한 50Ah급 대용량 전지제조기술 개발

Abstract ▼

Phase 1 goal are a development of a large battery pack for V2G using an improved 50Ah lithium-ion batteries which adopt commercial cathode and anode materials, and developments of high safety olivine cathode materialand high power metal composite
cathode material, and a development of manufacturi

Phase 1 goal are a development of a large battery pack for V2G using an improved 50Ah lithium-ion batteries which adopt commercial cathode and anode materials, and developments of high safety olivine cathode materialand high power metal composite
cathode material, and a development of manufacturing technology of 50Ah-class batteries for V2G energy storage system.
Major results are as follows:
○ Development of 16kWh of energy storage systems
- Battery pack capacity: 16.95kWh
- Battery pack energy density: 159Wh/L
- Battery pack power: 80kW-58sec
- Battery pack fast-charge time: 9 minutes 28 seconds
- Driving distance of developed battery powered electric vehicle is 150km.
○ Development of high-capacity battery materials and battery manufacturing technology for V2G energy storage system
- Manufacturing technology of advanced 50Ah battery
- Battery capacity : 56.5Ah
- Battery energy density: 170Wh/L, 310Wh/L
- Battery cycle life : 5000 cycles
- Battery power: 3015W/kg
- Battery low temperature characteristics : 83%/21%(energy/power)
- Battery fast-charge time: 9.1minutes (SOC 20→80)
- High safety olivine cathode material :
* Tap density : 1.65g/cc, Discharge capacity : 1250mWh/cc, Power : 75%, Thermal stability : 1W/g@280, Cycle : 92%@1000^th cycle
- High power metal composite anode material :
* Charging capacity of 364mAh/g@5C, 518mAh/g@2C, 1^st Efficiency : 90.4%, Cycle efficiency 99.5%, Heat generation : 1.1J/mAh
Technical and economical effects are as follows:
- The electric vehicle technology is expected to be the backbone of next generation national level green industry.
- Battery production technology for the future will develop next-generation growth industries.
- The electric vehicle technology is to give an additional effect due to the formation of Infra industry associated with bi-directional charger installation and grid operation.
- The main application areas of large energy storage systems are Renewable Energy energy storage system and Smart Grid etc.
Development of the 60Ah lithium battery and 19kWh energy storage system for V2G electric vehicle are the goal of Phase 2.

목차 Contents

• 표지 ... 1
• 제출문 ... 3
• 최종보고서 초록 ... 4
• 기술개발사업 주요 연구성과 ... 7
• 요약문 ... 12
• SUMMARY ... 14
• CONTENTS ... 16
• 목차 ... 17
• 제1장 서론 ... 18
• 제1절 개발기술의 중요성 및 필요성 ... 18
• 제2절 국내ㆍ외 관련 기술의 현황 ... 18
• 제3절 기술개발 시 예상되는 기술적ㆍ경제적 파급 효과 ... 25
• 제2장 기술개발 내용 및 방법 ... 27
• 제1절 최종 목표 및 평가 방법 ... 27
• 제2절 단계 목표 및 평가 방법 ... 29
• 제3절 연차별 개발 내용 및 개발 범위 ... 30
• 제3장 결과 및 향후 계획 ... 38
• 제1절 단계 연구개발 결과 ... 38
• 제2절 연구개발 추진 체계 ... 61
• 제3절 시장 현황 및 사업화 전망 ... 64
• 제4절 기업 재무건전성 현황 ... 67
• 제5절 주요 연구성과 ... 69
• 참고문헌 ... 74
• 부록 ... 75
• 최종보고서 요약서 ... 88