Supporting InformationSix-arm Star Polymer based on Discotic Liquid Crystal as High Performance

All-solid-state Polymer Electrolyte for Lithium-ion Batteries

Shi Wanga, Ailian Wanga, Chengkai Yangb, Rui Gaoc, Xu Liua, Jie Chena, Zhinan Wanga, Qinghui

Zenga, Xiangfeng Liuc, Henghui Zhoub*, Liaoyun Zhanga*

a School of chemical sciences, University of Chinese Academy of Sciences, Beijing 100049,

China

b College of Chemistry and Molecular Engineering, Peking University, Beijing, China

c College of Materials Science and Opto-Electronic Technology, University of Chinese Academy

of Sciences, Beijing 100049, China

Emails: zhangly@ucas.edu.cn; hhzhou@pku.edu.cn

Figure S1. The 1HNMR spectra of 2,3,6,7,10,11-hexamethoxytriphenylene (I), 2,3,6,7,10,11-

hexahydroxytriphenylene (II), and 2,3,6,7,10,11-hexakis(2-bromoisobutyryloxy)triphenylene (III).

Figure S2. The 13CNMR spectrum of 2,3,6,7,10,11-hexakis(2-bromoisobutyryloxy)triphenylene

(III).

Figure S3. IR spectra of (a) DLC-((PS)23)6, (b) DLC-((PS)23-b-(PPEGMA)5)6, (c) DLC-((PS)23-b-(PPEGMA)10)6 and (d) DLC-((PS)23-b-(PPEGMA)11)6.

Figure S4. The free-standing polymer electrolyte film based on DLC-((PS)23-b-(PPEGMA)10)6/

LiTFSI ([EO] / [Li] =24).

Figure S5. The EIS spectra of DLC-((PS)23-b-(PPEGMA)10)6 with [EO] / [Li] = 31 (a) and 20 (b)

before and after annealing , respectively

Table S1 Ionic conductivity of DLC-((PS)23-b-(PPEGMA)10)6 with different [EO] / [Li] before

and after annealing..

Table S2. The ionic conductivity of six-arm star PS-b-PPEGMA-based electrolyte (Compared

with typical block copolymer electrolytes).

Table S3 The values of VTF fitting parameters in Figure 6b.

DLC-((PS)23-b-(PPEGMA)10)6 Bulk resistance/ Ω Film thickness / cm

Ionic conductivity / S cm-1 (30 oC)

[EO] / [Li] = 31 (Unannealed) 183 0.009 6.27×10-5

[EO] / [Li] = 31 (Annealed) 128 0.009 8.95×10-5

[EO] / [Li] = 24 (Unannealed) 148 0.009 7.75×10-5

[EO] / [Li] = 24 (Annealed) 59 0.009 1.94×10-4

[EO] / [Li] = 20 (Unannealed) 237 0.009 4.84×10-5

[EO] / [Li] = 20 (Annealed) 140 0.009 8.20×10-5

Samples Ionic conductivity / S cm-1 References

PS-b-PEO ~6.00×10-4 (80 oC) [S1]

PS-b-PEO ~5.00×10-5 (30 oC) [S1]

PS-b-PEO ~3.00×10-6 (30 oC) [S2]

PS-b-PEO ~1.00×10-5 (30 oC) [S3]

PMMA-b-PEO 2.06×10-6 (RT) [S4]

PEO-b -(PMMA-ran-PMAALi)

1.26×10-5 (21 oC) [S5]

DLC-((PS)23-b-(PPEGMA)5)6

1.46 ×10-4 (30 oC)This work

1.64×10-3 (80 oC)

Samples AS-1 cm-1 K-1/2

Ea(kJ mol-1)

To(K)

DLC-((PS)23-b-(PPEGMA)10)6 ( [EO] / [Li] = 31)

0.22 10.23 181.28

DLC-((PS)23-b-(PPEGMA)10)6 ( [EO] / [Li] = 24)

2.07 10.93 179.41

DLC-((PS)23-b-(PPEGMA)10)6 ( [EO] / [Li] = 20)

0.0065 6.78 185.79

Figure S6. The SPEs-based coin cell can power a LED lamp at 30 oC.

Figure S7. Voltage profiles for lithium plating/striping experiment for DLC-((PS)23-b-

(PPEGMA)10)6 ( [EO]/ [Li] = 24) membrane in a symmetric lithium coin cell cycled at a current

density of 10 μA cm-2.

References:

[S1] W.-S. Young, T.H. Epps III, Macromolecules 45 (2012) 4689-4697.

[S2] R. Yuan, A.A. Teran, I. Gurevitch, S.A. Mullin, N.S. Wanakule, N.P. Balsara,

Macromolecules 46 (2013) 914-921.

[S3] M. Chintapalli, X.C. Chen, J.L. Thelen, A.A. Teran, X. Wang, B.A. Garetz, N.P. Balsara,

Macromolecules 47 (2014) 5424-5431.

[S4] A.V.G. Ruzette, P.P. Soo, D.R. Sadoway, A.M. Mayes, J. Electrochem. Soc. 148 (2001) A537-

A543.

[S5] A. Ghosh, P. Kofinas, J. Electrochem. Soc. 155 (2008) A 428-A431.