Journal ArticleDOI
Micro-sized Si-C Composite with Interconnected Nanoscale Building Blocks as High-Performance Anodes for Practical Application in Lithium-Ion Batteries
Reads0
Chats0
TLDR
In this paper, a Si-C nanocomposites (e.g., nanowires, nanotubes, or nanoparticles) has been used to improve the capacity and cycling stability of high-energy-density lithium-ion batteries.Abstract:
The emerging markets of electric vehicles (EV) and plug-in hybrid electric vehicles (PHEV) generate a tremendous demand for low-cost lithium-ion batteries (LIBs) with high energy and power densities and long cycling life. [ 1–4 ] The development of such LIBs requires development of low cost, high energy-density cathode and anode materials. Conventional anode materials in commercial LIBs are primarily synthetic graphite-based materials with a capacity of ∼ 370 mAh/g. [ 5 ] Improvements in anode performance, particularly in anode capacity, are essential to achieving high energy densities in LIBs for EV and PHEV applications. Silicon has been intensively pursued as the most promising anode material for high-energy-density LIBs because of its high specifi c capacity ( > 3500 mAh/g) and abundance. [ 6 ] Despite its high capacity, Si suffers from fast capacity fading caused by its large volume change ( > 300%) during lithiation/delithiation and the serious issues stemming from this volume change, e.g., unstable solid electrolyte interphase (SEI) and disintegration (cracking and crumbling) of the electrode structure. [ 7 , 8 ] The development of Si-C nanocomposites (e.g., nanowires, nanotubes, or nanoparticles) has been widely studied. [ 9–18 ] These nanocomposites proved to be an effective method of improving capacity and cycling stability, since nano-sized Si can alleviate fracture during volume changes and the contact between Si and carbon can maintain electrical contact and improve conductivity of the nanocomposites. However, practical application of nano-sized Si materials in LIBs is diffi cult. First, achieving a high tap density is important for fabrication of high-energy LIBs for EVs and PHEVs, because it offers a high volumetric energy density. Unfortunately, the tap density of nano-sized materials is generally low, which in turn holds down their volumetric capacity. [ 19 ] Furthermore, preparation of nano-sized Si either requires chemical/physical vapor deposition or involves complicated processes, leading to costly, low-yield synthesis that is diffi cult to scale up to practical levels. [ 20–22 ] To date, the abundance of Si has not been fully capitalized upon due to lackread more
Citations
More filters
Journal ArticleDOI
From natural material to high-performance silicon based anode: Towards cost-efficient silicon based electrodes in high-performance Li-ion batteries
TL;DR: In this article, a cost-efficient approach on the fabrication of porous Si via the low temperature aluminothermic reduction of low cost natural raw materials, combining the advantages of low temperature and natural materials, was reported.
Journal ArticleDOI
Chemomechanics of Rechargeable Batteries: Status, Theories, and Perspectives.
Luize Scalco de Vasconcelos,Rong Xu,Zhengrui Xu,Jing Zhang,Nikhil Sharma,Sameep Rajubhai Shah,Jia-Xing Han,Xiaomei He,Xianyang Wu,Hong Sun,Shan Hu,Madison Perrin,Xiaokang Wang,Yijin Liu,Feng Lin,Yi Cui,Kejie Zhao +16 more
TL;DR: In this paper , the authors review the significance of chemomechanics in the context of battery performance, as well as its mechanistic understanding by combining electrochemical, materials, and mechanical perspectives.
Journal ArticleDOI
Highly efficient poly(fluorene phenylene) copolymer as a new class of binder for high‐capacity silicon anode in lithium‐ion batteries
Neslihan Yuca,Mehmet Emre Cetintasoglu,Murat Ferhat Dogdu,Huseyin Akbulut,Sevcan Tabanli,Üner Çolak,Omer Suat Taskin,Omer Suat Taskin +7 more
Journal ArticleDOI
Fabrication of double core–shell Si-based anode materials with nanostructure for lithium-ion battery
Pengfei Wu,Changqing Guo,Jiangtao Han,Kairui Yu,Xichao Dong,Guanghui Yue,Huijuan Yue,Yan Guan,Anhua Liu +8 more
TL;DR: Si@C@SiO2 was designed for the first time to improve the cycling performance of the electrode by utilizing the unique advantages of the SiO2 layer and the closely contacted carbon layer.
Journal ArticleDOI
Silicon nanoparticle self-incorporated in hollow nitrogen-doped carbon microspheres for lithium-ion battery anodes
Linghong Yin,Mihee Park,Injun Jeon,Jin Hyun Hwang,Jong Pil Kim,Hyung Woo Lee,Minjoon Park,Se Young Jeong,Chae-Ryong Cho +8 more
TL;DR: In this article, Silicon nanoparticles were homogeneously self-incorporated into melamine-formaldehyde resins using a facile hydrothermal technique, followed by annealing the precursors to form hollow nitrogen-doped carbon microspheres (hNC MSs) containing approximately 10.8% Si NPs.
References
More filters
Journal ArticleDOI
Building better batteries
TL;DR: Researchers must find a sustainable way of providing the power their modern lifestyles demand to ensure the continued existence of clean energy sources.
Journal ArticleDOI
Nanostructured materials for advanced energy conversion and storage devices
Antonino S. Aricò,Peter G. Bruce,Bruno Scrosati,Jean-Marie Tarascon,Jean-Marie Tarascon,Walter van Schalkwijk +5 more
TL;DR: This review describes some recent developments in the discovery of nanoelectrolytes and nanoeLECTrodes for lithium batteries, fuel cells and supercapacitors and the advantages and disadvantages of the nanoscale in materials design for such devices.
Journal ArticleDOI
High-performance lithium battery anodes using silicon nanowires
Candace K. Chan,Hailin Peng,Gao Liu,Kevin McIlwrath,Xiao Feng Zhang,Robert A. Huggins,Yi Cui +6 more
TL;DR: The theoretical charge capacity for silicon nanowire battery electrodes is achieved and maintained a discharge capacity close to 75% of this maximum, with little fading during cycling.
Journal ArticleDOI
Lithium Batteries and Cathode Materials
TL;DR: This paper will describe lithium batteries in more detail, building an overall foundation for the papers that follow which describe specific components in some depth and usually with an emphasis on the materials behavior.
Journal ArticleDOI
Battery materials for ultrafast charging and discharging
Byoungwoo Kang,Gerbrand Ceder +1 more
TL;DR: It is shown that batteries which obtain high energy density by storing charge in the bulk of a material can also achieve ultrahigh discharge rates, comparable to those of supercapacitors.