PMID- 30213183
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20181015
LR  - 20181015
IS  - 1944-8252 (Electronic)
IS  - 1944-8244 (Linking)
VI  - 10
IP  - 40
DP  - 2018 Oct 10
TI  - Robust Micron-Sized Silicon Secondary Particles Anchored by Polyimide as 
      High-Capacity, High-Stability Li-Ion Battery Anode.
PG  - 34132-34139
LID - 10.1021/acsami.8b09566 [doi]
AB  - Silicon is an attractive high-capacity anode material for lithium-ion battery. 
      With the help of nanostructures, cycling performance of silicon anode has 
      improved significantly in the past couple of years. However, three major 
      shortcomings associated with nanostructures still need to be addressed, namely, 
      their high surface area, low tap density, and poor scalability. Herein, we 
      present a facile and practical method to produce micron-sized Si secondary 
      particle cluster (SiSPC) with a high tap density and a low surface area from bulk 
      Si by high-energy ball-milling. By coupling SiSPC with a mechanically robust 
      polyimide binder, more than 95% of the initial capacity is retained after 500 
      cycles at 3500 mA g(-1) (1C rate). Reversibility of electrode thickness change is 
      confirmed by in situ dilatometry. In addition, the polyimide binder suppresses 
      the surface reaction of the particles with electrolyte, resulting in a high 
      Coulombic efficiency of 99.7%. Excellent cycling performance is obtained even for 
      thick electrodes with an areal capacity of 3.57 mAh cm(-2), similar to those in 
      commercial lithium-ion batteries. The presented Si electrode system has a high 
      volumetric capacity of 598 mAh cm(-3), which is higher than that of the 
      commercial graphite anode materials.
FAU - Lee, Pui-Kit
AU  - Lee PK
FAU - Tan, Tian
AU  - Tan T
FAU - Wang, Shuo
AU  - Wang S
FAU - Kang, Wenpei
AU  - Kang W
AUID- ORCID: 0000-0001-6550-9287
FAU - Lee, Chun-Sing
AU  - Lee CS
FAU - Yu, Denis Y W
AU  - Yu DYW
AUID- ORCID: 0000-0002-5883-7087
LA  - eng
PT  - Journal Article
DEP - 20180927
PL  - United States
TA  - ACS Appl Mater Interfaces
JT  - ACS applied materials & interfaces
JID - 101504991
OTO - NOTNLM
OT  - high-energy ball-mill
OT  - lithium-ion battery
OT  - mechanical stability
OT  - polyimide
OT  - secondary silicon particle
EDAT- 2018/09/15 06:00
MHDA- 2018/09/15 06:01
CRDT- 2018/09/15 06:00
PHST- 2018/09/15 06:00 [pubmed]
PHST- 2018/09/15 06:01 [medline]
PHST- 2018/09/15 06:00 [entrez]
AID - 10.1021/acsami.8b09566 [doi]
PST - ppublish
SO  - ACS Appl Mater Interfaces. 2018 Oct 10;10(40):34132-34139. doi: 
      10.1021/acsami.8b09566. Epub 2018 Sep 27.