Page 194 - 201905
P. 194
·962· 精细化工 FINE CHEMICALS 第 36 卷
state lithium ion batteries[J]. Materials and Design, 2018, 142:
221-228.
[5] Bao J J, Shi G J, Tao C,et al. Polycarbonate-based polyurethane as a
polymer electrolyte matrix for allsolid-state lithium batteries[J]. J
Power Sources, 2018, 389: 84-92.
[6] Chen L, Li Y T, Li S P, et al. PEO/garnet composite electrolytes for
solid-state lithium batteries: From “ceramic-in-polymer” to “polymer-
in-ceramic”[J]. Nano Energy, 2018, 46: 176-184.
[7] Zhang Y F, Cai W W, Rohan R, et al. Toward ambient temperature
3
operation with all-solid-state lithium metal batteries with a sp boron-
based solid single ion conducting polymer electrolyte[J]. J Power
Sources, 2016, 306: 152-161.
图 7 LiFePO 4 、SP 和 PCPU 不同质量配比下组装的电池
[8] Maleki H. Thermal stability studies of Li-ion cells and components[J].
的循环库伦效率图 Electrochem Soc, 1999, 146: 3224-3229.
Fig. 7 Cycling performance for the LFP cathodes with [9] Lee S J, Yang J, Lu W. Debonding at the interface between active
binders
particles and PVDF binder in Li-ion batteries[J]. Extreme Mechanics
粘结剂含量少发生掉粉剥落现象所致 [22] 。而 PCPU- Lett, 2016, 6: 37-44.
[10] Park G G, Park Y K, Park J K, et al. Flexible and wrinkle-free
602020、PCPU-701515、PCPU-801010 和 PCPU-80155
electrode fabricated with polyurethane binder for lithium-ion
电池循环 50 次后放电比容量均衰减不大,库仑效率 batteries[J]. Royal Society of Chemistry, 2017, 7: 16244-16252.
均维持在 99%左右。其中,PCPU-701515、PCPU- [11] Chen W C, Chen H H, Wen T C,et al. Morphology and ionic
conductivity of thermoplastic polyurethane electrolytes[J]. Appl Polym
801010 和 PCPU-80155 电池在循环 50 次后容量保持
Sci, 2004, 91: 1154-1167.
率分别为 95.26%、93.48%和 94.11%。而 PCPU-602020 [12] Du H, Zhao Y, Li Q, et al. Synthesis and characterization of
电池循环 50 次后放电容量从 147.1 mA·h/g 降到 waterborne polyurethane adhesive from MDI and HDI[J]. Journal of
143.2 mA·h/g,容量保持率高达 97.35%,表现出优 Applied Polymer Science, 2008, 110(3): 1396-1402.
[13] Ning Jixin (宁继鑫), Bao Liang (鲍亮), Liu Shiyong (刘世勇), et al.
异的循环性能。
Study on bonding mechanism of waterborne polyurethane adhesive
for shoes (Ⅰ) - influence of interfacial tension [J]. Leather Science
3 结论 and Engineering (皮革科学与工程), 2015,25(6):5-10.
[14] Dong Tiantian (董甜甜), Zhang Jianjun (张建军), Chai Jingchao (柴
(1)以 PCDL 和 HMDI 为原料,制备聚碳酸酯 敬超), et al. Research progress of polycarbonate based solid polymer
型聚氨酯(PCPU),将其作为全固态锂离子电池粘 electrolytes[J]. Journal of Polymer Science (高分子学报), 2017, (6):
结剂。与传统 PVDF 粘结剂相比,PCPU 表现出更 906-921.
[15] Nigar M, Blackwell J, Chvalun S N, et al. The structure of the hard
好的粘接性能和电化学性能。
domains in frans, frans-HMDI-based polyurethane elastomers[J].
(2)当 m(LiFePO 4 )∶m(SP)∶m(PCPU)=6∶2∶ Acta Polymer, 1996, 47: 48-54.
2 时,制备的正极片剥离强度达到 0.32 N/cm,用其 [16] Bar N, Basak P, Tsur Y. Vibrational and impedance spectroscopic
analyses of semi-interpenetrating polymer networks as solid polymer
组装的电池综合性能最佳。60 ℃时,0.2、1.0 和 3.0
electrolytes[J]. Physical Chemistry Chemical Physics, 2017, 19:
C 电流密度下电池放电比容量分别达到 152.8、143.0 14615-14624.
和 51.4 mA·h/g,0.2 C 循环 50 次后容量保持率达到 [17] Špírková M, Pavličević J, Strachota A, et al. Novel polycarbonate-
97.35%,显示出良好的应用前景,对固态锂离子电 based polyurethane elastomers: Composition-property relationship[J].
European Polymer Journal, 2011, 47: 959-972.
池的研究具有一定的实际意义。
[18] García-Pacios V, Costa V, Colera M, et al. Waterborne polyurethane
dispersions obtained with polycarbonate of hexanediol intended for
参考文献:
use as coatings[J]. Progress in Organic Coatings, 2011, 71: 136-146.
[1] Shi Y, Zhou X, Zhang J, et al. Nanostructured conductive polymer [19] Fang C, Lei W, Zhou X, et al. Preparation and characterization of
gels as a general framework material to improve electrochemical waterborne polyurethane containing PET waste/PPG as soft segment
performance of cathodematerials in Li-ion batteries[J]. Nano Lett, [J]. Journal of Applied Polymer Science, 2015, 132:1-15.
2017, 17: 1906-1914. [20] Lee Y H, Kim J S, Noh J, et al.Wearabletextile battery rechargeable
[2] Goodenough J B, Park K S. The Li-ion rechargeable battery: a by solar energy[J]. Nano Lett, 2013, 13: 5753-5761.
perspective[J].J Am Chem Soc, 2013, 135: 1167-1176. [21] Chen W C, Chen H H, Wen T C, et al. Morphology and ionic
[3] Zhang W Q, Nie J H, Li F, et al. A durable and safe solid-state lithium conductivity of thermoplastic polyurethane electrolytes[J]. Appl Polym
battery with a hybrid electrolyte membrane[J]. Nano Energy, 2018, Sci, 2004, 91: 1154-1167.
45: 413-419. [22] Cheng X B, Zhang R, Zhao C Z, et al. Towardsafe lithium metal
[4] Cong B, Song Y X, Ren N Q, et al. Polyethylene glycol-based anode in rechargeable batteries: a review[J]. Chem Rev, 2017, 117:
waterborne polyurethane as solid polymer electrolyte for all-solid- 10403-10473.