Simulation study on internal short circuit of lithium ion battery caused by lithium dendrite

A Ni-MOF derived graphene oxide combined Ni3S2–Ni/C composite and its use in the separator coating for lithium sulfur batteries

“…12,13 The growth of the lithium dendrites on the anode may pierce the separator, causing a short circuit in the battery. [14][15][16] The ''shuttle effect'' of the lithium polysulfides (LPs) originating from the cathode causes a large amount of active material loss. [17][18][19] Among these problems, the most notorious one is the ''shuttle effect'', 20 which is due to the LPs formed during the redox reaction process which cannot be converted in time or cannot be effectively restricted.…”

“…12,13 The growth of the lithium dendrites on the anode may pierce the separator, causing a short circuit in the battery. 14–16 The “shuttle effect” of the lithium polysulfides (LPs) originating from the cathode causes a large amount of active material loss. 17–19…”

H-Bond Cross-Linked Polyimide Nanofiber-Modified Polyethylene Composite Separators for Lithium-Ion Batteries

“…Lithium-ion batteries (LIBs) have been widely used in a variety of fields like 3C products, electric cars, and energy storage power stations because of their small size, light weight, and high energy. − Separators separate the anode and cathode in LIBs, preventing short circuits in the battery and allowing for free passage of ions in the electrolyte. , The separator is usually an inert component of the LIB, but its structure and function have a lot of influence on battery assembly, electrochemical performance, and safety. − Currently, the commonly used polyethylene (PE) and polypropylene (PP) and composite membranes have a thin thickness, good chemical stability, and high mechanical strength and are often widely used in LIBs. , However, polyolefin separators can cause serious thermal damage problems beyond a certain temperature . The heat resistance of the separator cannot be neglected because its failure often leads to the occurrence of internal short circuits and thermal runaway. − Moreover, polyolefin-based separators are non-polar materials and have poor compatibility with polar electrolytes, which leads to poor affinity and wettability between separators and electrolytes .…”

Application of Nondestructive Testing Technology in Device‐Scale for Lithium‐Ion Batteries

“…[ 5 ] To ensure the safety of LIBs, it is unavoidable to understand and analyze the phenomena and causes of battery failure. [ 6 ] The commonly found failure phenomena include poor electrolyte wetting, [ 7 ] cell expansion, [ 8 ] gas production inside the cell, [ 9 ] lithium dendrites generation, [ 10 ] solid electrolyte cracking, [ 11 ] etc. [ 12 ] The causes of each phenomenon are different and some of them are unavoidable, but only by analyzing and correcting them as much as possible can we guarantee the safety of the battery.…”