SBIR Phase I: Advanced Carbon Electrodes to Reduce Ultracapacitor Size and Cost

SBIR 第一阶段：先进碳电极可减小超级电容器尺寸和成本

• 批准号: 0060431
• 负责人: Michael Wixom
• 金额: $ 10万
• 依托单位: T/J Technologies, Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-01-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0060431&HistoricalAwards=false
• 关键词: SBIR; Phase; Advanced; Carbon; Electrodes

This Small Business Innovation Research (SBIR) Phase I Project will significantly increase the energy density and reduce the manufacturing cost of ultracapacitors for NGV applications. Cell voltage constraints presently limit the energy density and increase the number of cells required for high voltage ultracapacitors. The composition of porous carbon electrode materials will be modified to adjust the open circuit potential, thereby increasing the cell voltage. Anodically stable electrolytes will be investigated to furtherincrease cell voltage. The objective is to increase cell voltage to 3.6 V versus 2.5 V typical for present commercial carbon-based ultracapacitors. Since energy density scales with 2 V, 3.6 V cells would more than double the energy density. This increase would also reduce manufacturing cost by reducing the number of cells in high voltage devices by 30%. Prototype capacitor cells will be prepared and evaluated to determine the cell voltage window. Extended charge/discharge and constant potential measurements will be made to assure that the increased cell voltage is sustained.Ultracapacitors complement or replace batteries in applications where weight, peak power, and battery life are key factors. Commercial applications include cellular phones, power conditioning (UPS),electromechanical actuators, and conventional or next generation vehicles.

这个小型企业创新研究(SBIR)第一阶段项目将显著提高NGV应用的超级电容器的能量密度并降低制造成本。目前，电池电压限制限制了高压超级电容器所需的能量密度并增加了电池的数量。多孔碳电极材料的组成将被修饰，以调整开路电位，从而提高电池电压。将研究阳极稳定的电解液，以进一步提高电池电压。其目标是将电池电压从目前商用碳基超级电容器的2.5V提高到3.6V。由于能量密度与2V成比例，3.6V电池将使能量密度增加一倍以上。这一增长还将通过将高压设备中的电池数量减少30%来降低制造成本。将准备和评估电容器电池原型，以确定电池电压窗口。将进行延长的充放电和恒定电位测量，以确保持续增加的电池电压。在重量、峰值功率和电池寿命是关键因素的应用中，超级电容器可以补充或取代电池。商业应用包括移动电话、电源调节(UPS)、机电执行器和传统或下一代汽车。