用P2D模型探討鋰鍍層的機制

Abstract

本論文利用comsol建立P2D模型，並探討鋰鍍層的發生，從模型知曉電池內部化學反應對鋰離子的影響，並探討在鋰鍍層發生前的充電，對電池內部的鋰子濃度變化對電池鍍層的影響，並找出鍍層發生前的電池共同指標，用以提供後續檢測鋰鍍層的發生應用。並整理現今研究中電池研究的模型使用與運用發法，以便後續研究對模型的選定。目前電池檢測鋰鍍層發生的討論，多發生於充電後，本文利用模型了解充電後鋰鍍層可被檢測原因。本文測試電化學參數對電池充電時間與充電容量的影響，使更加了解電池參數對電池的重要性。

This thesis utilizes COMSOL to establish a P2D model and investigate the occurrence of lithium plating. The model provides insights into the chemical reactions within the battery and their impact on lithium ions. The study explores the effects of charging on the internal lithium concentration and its influence on lithium plating, identifying common indicators of plating occurrence. These findings aim to aid future detection applications of lithium plating. The thesis also reviews the current use and application of models in battery research, guiding future research in model selection. The discussion on detecting lithium plating often focuses on post-charging scenarios; this study uses the model to understand the reasons behind detecting lithium plating after charging. The thesis examines the effects of electrochemical parameters on battery charging time and capacity, emphasizing the importance of these parameters for battery performance.