论文标题
在可充电电池的树突中的电荷平衡的凸面
Convexification of Charge Equilibrium within the Dendrites of Rechargeable Batteries
论文作者
论文摘要
电池电化学充电期间微观结构的无定形传播是容量衰减和短路的主要原因。整个微结构的电荷分布是局部和全局平衡的结果，仅是由于原子的随机位置而导致的非凸问题。因此，获得电荷平衡（QEQ）是关键因素，因为电荷的量决定了接近微观结构的离子物种的键形成的成功率，从而确定了电化学沉积物的最终形态。本文中，我们开发了一种计算功能的方法，用于确定此类微结构中的电荷分配。成本函数和电荷分布的跨度与微不足道的方法以及常规方法密切相关，尽管计算成本大大降低。该方法可用于在非凸环境中进行优化，尤其是随机性质的环境。
The amorphous propagation of microstructures during the electrochemical charging of a battery is the main reason for the capacity decay and short circuit. The charge distribution across the micro-structure is the result of both local and global equilibrium and is non-convex problem merely due to stochastic placement of the atoms. As such, obtaining the charge equilibrium (QEq) is a critical factor, since the amount of charge determines the success rate of the bond formation for the ionic species approaching the microstructure and consequently the ultimate morphology of the electrochemical deposits. Herein we develop a computationally-affordable method for determining the charge allocation within such microstructures. The cost function and the span of the charge distribution correlates very closely with the trivial method as well as a conventional method, albeit having significantly less computational cost. The method can be used for optimization in non-convex environments, specially those of stochastic nature.
