Modeling large patterned deflection during lithiation of micro-structured silicon

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Microstructural evolution induced by micro-cracking during fast lithiation of single-crystalline silicon

We report observations of microstructural changes in {100} and {110} oriented silicon wafers during initial lithiation under relatively high current densities. Evolution of the microstructure during lithiation was found to depend on the crystallographic orientation of the silicon wafers. In {110} silicon wafers, the phase boundary between silicon and LixSi remained flat and parallel to the surf...

متن کامل

Reaction Front Evolution during Electrochemical Lithiation of Crystalline Silicon Nanopillars

Silicon is one of the most promising anode materials for use in rechargeable lithium-ion batteries due to its high theoretical specific capacity of 4200 mAhg 1 and low cost. However, this high lithium storage capacity results in enormous volume expansion and contraction during electrochemical lithiation and delithiation, which can induce mechanical fracture and severe capacity fading. Recently,...

متن کامل

Robustness of amorphous silicon during the initial lithiation/delithiation cycle

Recent research on the electrochemical lithiation of amorphous silicon nanoparticles shows that amorphous silicon is more fracture resistant than crystalline silicon during lithiation. Nanoparticles of amorphous silicon can be lithiated and delithiated without any fracture at all. To fully exploit the potential of using amorphous silicon as electrodes for lithium ion batteries it is important t...

متن کامل

Size-dependent fracture of silicon nanoparticles during lithiation.

Lithiation of individual silicon nanoparticles was studied in real time with in situ transmission electron microscopy. A strong size dependence of fracture was discovered; that is, there exists a critical particle diameter of ∼150 nm, below which the particles neither cracked nor fractured upon first lithiation, and above which the particles initially formed surface cracks and then fractured du...

متن کامل

Anisotropic swelling and fracture of silicon nanowires during lithiation.

We report direct observation of an unexpected anisotropic swelling of Si nanowires during lithiation against either a solid electrolyte with a lithium counter-electrode or a liquid electrolyte with a LiCoO(2) counter-electrode. Such anisotropic expansion is attributed to the interfacial processes of accommodating large volumetric strains at the lithiation reaction front that depend sensitively ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Extreme Mechanics Letters

سال: 2017

ISSN: 2352-4316

DOI: 10.1016/j.eml.2017.05.001