High performance battery technology breakthrough in China: long life battery-IT information
On August 15, Ministry of science and technology Web site according to a recent announcement, the national 863 plan theme projects in the field of advanced energy technologies "chemical energy storage battery with high performance and demonstration study on the key technology of power station" has made significant progress.
In the "Twelve-Five" 863 Program advanced energy technologies "chemical energy storage battery with high performance and demonstration study on the key technology of power station" project, supported by the "high energy, low cost new-style Super capacitors key technology research", "long-life lithium manganate batteries for energy storage technology and demonstration" project has made significant progress recently passed the technical inspection.
In "new super capacitor" aspects, breakthrough has high energy density high power density long life super capacitor of preparation technology bottleneck, development has more hole graphite en, and high resistance pressure electrolytic quality salt and electrolytic liquid, and cellulose diaphragm, material, development has dry legal prepared electrode tablets in the try technology, breakthrough has (3.0V/12000F) super capacitor industrialization of core technology, products has in mechanical can recycling, and super capacitor track vehicles aspects in both at home and abroad get application. Currently the supercapacitor materials, devices to system integration has formed core technology system, changing the super capacitor during the 25 by the monopoly of foreign products.
In "long life manganese acid lithium Department storage can battery" aspects, carried out has layer-like manganese acid lithium, and surface package covered Crystal manganese acid lithium, and aluminum cobalt total doping manganese acid lithium cathode material, and asphalt and resin derivative of hard carbon negative material, and function electrolytic liquid of research, and monomer battery, and module and storage can system of research, master has long life low cost lithium ion storage can system of industrialization key technology, monomer life has over 3,000 times, highest reached 6,000 times . Out into 2 sets of 50kW/100kWh for the first time at the international level of layered lithium manganate/hard carbon for lithium-ion battery energy storage system development and demonstration and developed the 20kWh home solar energy systems, 3kWh standby power applications such as model.
In the "all-solid-state lithium-ion battery for energy storage", the Li2S-P2S5 developed the high electrical conductivity of binary and Li2S-GeS2-P2S5 ternary solid electrolyte master Li2S-P2S5 system the preparation of glass-ceramics solid electrolytes materials, preparation of amorphous precursor obtained breakthrough to realize efficient preparation of stable. Has now achieved sulphide solid electrolyte preparation capacity kg. Developed with core-shell structure and composition gradient of nickel cathode materials for group hierarchies. The above sulfide binary solid electrolyte and cathode, the capacity has been developed for 4.0Ah and 8.0Ah solid lithium battery, temperature cycles up to 500 times, optimizes large solid state soft pack of batteries of the Assembly process, promoting the industrialization of all-solid-state lithium-ion batteries.
"Energy storage battery new lithium-sulfur chemistry", the development of preparation technology of high energy density lithium-sulphur batteries new 35Ah lithium sulfur battery energy density reaches 566Wh/kg (25 ℃), has reached the world advanced level. Preliminary development of 1kWh and 12kWh lithium-sulphur battery pack large capacity lithium-sulfur batteries, realizes its model coupled with solar power generation. With Elemental sulfur in large-capacity lithium-sulphur batteries and battery technology products for long endurance unmanned aerial vehicle onboard energy system and other areas of potential application prospects.
Also, in "low cost titanium acid lithium Department storage can lithium ion battery" aspects, through has low cost material volume produced, and long life high consistency battery and the module, and power station model and the promotion full industry chain, built has based on titanium acid lithium Department negative material of mobile type storage can model device, for has 0.5MWh/1MW titanium acid lithium battery storage can power station of light storage application model, for titanium acid lithium Department storage can of application lay has based.
This project of implementation, in must degree Shang meet has can renewable energy and intelligent grid of mass storage can needs, promote has wind, and solar of ordered development and resources reasonable configuration, improve has intermittent sex new energy of grid technology, for China storage can battery material-battery-integrated-model industry chain provides has more full of technology support system, for future the industry of sustainable development building has has international competitiveness of industrialization platform, promote has China storage can industry of development, Enhanced the status of China's sustainable energy development strategies, and broad market prospects.
中国高性能电池技术获重大突破：寿命超长 - 电池 - IT资讯
8月15日消息，科技部网站最新公告显示，国家863计划先进能源技术领域主题项目“高性能化学储能电池及示范电站关键技术研究”取得重大进展。
在“十二五”863计划先进能源技术领域“高性能化学储能电池及示范电站关键技术研究”主题项目支持下，“高比能、低成本的新型超级电容器关键技术研究”、“长寿命锰酸锂系储能电池关键技术及示范”等课题均取得了重大进展，近期通过了技术验收。
在“新型超级电容器”方面，突破了高能量密度高功率密度长寿命超级电容器的制备技术瓶颈，研制了多孔石墨烯、高耐压电解质盐和电解液、纤维素隔膜等材料，开发了干法制备电极片中试技术，突破了（3.0V/12000F）超级电容器产业化的核心技术，产品已在机械能回收、超级电容器轨道车辆方面在国内外获得应用。目前国内在超级电容器方面从材料、器件到系统集成已形成核心技术体系，改变了超级电容器在十一五期间由国外产品垄断的局面。
在“长寿命锰酸锂系储能电池”方面，开展了层状锰酸锂、表面包覆单晶锰酸锂、铝钴共掺杂锰酸锂正极材料、沥青和树脂衍生的硬碳负极材料、功能电解液的研究，以及单体电池、模块和储能系统的研究，掌握了长寿命低成本锂离子储能系统的产业化关键技术，单体寿命已经超过3000次，最高达到6000次。在国际上完首次成了2套50kW/100kWh级层状锰酸锂/硬碳锂离子电池储能系统的开发并示范运行；同时开发了20kWh家用太阳能发电储能系统，3kWh备用应急电源等应用示范。
在“全固态锂离子储能电池”方面，成功开发出高电导率的Li2S-P2S5二元系和Li2S-GeS2-P2S5三元系固体电解质，掌握了Li2S-P2S5体系玻璃陶瓷固体电解质材料的制备方法，非晶前驱体的制备方法取得较大突破，实现了高效率的稳定制备。目前已经实现硫化物固态电解质的公斤级制备能力。研制了具有核壳结构和组分梯度的高镍组分层状正极材料。采用上述二元系硫化物固体电解质和正极，研制了容量为4.0Ah和8.0Ah的固态锂电池，室温循环次数达到了500次，优化了大型全固态软包电池的组装工艺，推进了全固态锂离子电池的产业化进程。
在“新型锂硫化学储能电池”方面，开发了高能量密度锂硫电池制备技术，研制的35Ah锂硫电池比能量达到566Wh/kg（25℃测试），达到了世界领先水平。初步开发了1kWh锂硫电池组和12kWh大容量锂硫电池组，实现了其与太阳能电池耦合发电示范。采用单质硫的大容量锂硫电池及电池组的技术产品具备用作长航时无人机机载能源系统等领域的潜力，推广应用前景广阔。
此外，在“低成本钛酸锂系储能锂离子电池”方面，打通了低成本材料量产、长寿命高一致性电池及模块、电站示范及推广全产业链，搭建了基于钛酸锂系负极材料的移动式储能示范装置，进行了0.5MWh/1MW钛酸锂电池储能电站的光储应用示范，为钛酸锂系储能的应用奠定了基础。
本项目的实施，在一定程度上满足了可再生能源和智能电网的大规模储能需求，促进了风能、太阳能的有序开发与资源合理配置，提高了间歇性新能源的并网技术水平，为中国储能电池材料-电池-集成-示范产业链提供了较为完整的技术支撑体系，为今后该产业的可持续发展构建了具有国际竞争力的产业化平台，促进了中国储能行业的发展，增强了中国能源可持续发展的战略地位，市场前景广阔。