Lithium deposition;
Electrodeposition;
Dendrite;
Low temperature charging;
Electrolyte additives;
Li metal secondary batteries;
ATOMIC-FORCE MICROSCOPY;
SCANNING-ELECTRON-MICROSCOPY;
IN-SITU OBSERVATION;
DENDRITIC GROWTH;
LI DEPOSITION;
ELECTROCHEMICAL PROPERTIES;
ELECTRODEPOSITED LITHIUM;
LIQUID ELECTROLYTES;
GRAPHITE-ELECTRODES;
MODIFIED SILOXANES;
D O I:
10.1016/j.jpowsour.2013.12.099
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Major aspects related to lithium deposition in lithium-ion and lithium metal secondary batteries are reviewed. For lithium-ion batteries with carbonaceous anode, lithium deposition may occur under harsh charging conditions such as overcharging or charging at low temperatures. The major technical solutions include: (1) applying electrochemical models to predict the critical conditions for deposition initiation; (2) preventions by improved battery design and material modification; (3) applying adequate charging protocols to inhibit lithium deposition. For lithium metal secondary batteries, the lithium deposition is the inherent reaction during charging. The major technical solutions include: (1) the use of mechanistic models to elucidate and control dendrite initiation and growth; (2) engineering surface morphology of the lithium deposition to avoid dendrite formation via adjusting the composition and concentration of the electrolyte; (3) controlling battery working conditions. From a survey of the literature, the areas that require further study are proposed; e.g., refining the lithium deposition criteria, developing an effective AC self pre-heating method for low-temperature charging of lithium-ion batteries, and clarifying the role the solid electrolyte interphase (SEI) plays in determining the deposition morphology; to facilitate a refined control of the lithium deposition. (c) 2013 Elsevier B.V. All rights reserved.