IMPROVED BATTERIES FOR VENTRICULAR ASSIST SYSTEMS

最新的组件技术创新将与新的 可显著提高能量密度和循环的材料 密封可充电方形镍锌电池的寿命。锌 电极长期以来被认为具有高能量密度，但是 镍-锌系统的寿命受到分离器的限制，分离器 要求电解质浓度对于电极来说不是最佳的 由于锌的溶解性和再电镀形成树枝状， (and随后的短路）和形状改变。 建议的目标 该计划是为了证明电池的可行性与改进 在隔膜中，电解质浓度和正极活性材料 密度，以达到性能的目标，这将提供一个电池， 这些电池方便地安装在腰带或背心中， 用于心室辅助的能量。

Recent component technology innovations will be combined with new materials available to significantly improve the energy density and cycle life of sealed rechargeable nickel-zinc prismatic batteries. The zinc electrode has long been recognized as having a high energy density, but the nickel-zinc system has been limited in life by separators which require electrolyte concentrations which are not optimum for electrode performance because of solubility and replating of zinc to form treeing (and consequent shorting) and shape change. The objective of the proposed program is to demonstrate the feasibility of the battery with improvements in separator, electrolyte concentration, and positive active material density, to reach goals of performance which will provide a battery of cells which conveniently fit in a belt or vest and can provide sufficient energy for ventricular assist.