1篇
您的检索式：作者名="Yuming Tseng"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Ultrathin salt-free polymer-in-ceramic electrolyte for solid-state sodium batteries显示文摘The practical energy density of solid-state batteries remains limited,partly because of the lack of a general method to fabricate thin membranes for solid-state electrolytes with high ionic conductivity and low area-specific resistance(ASR).Herein,we use an ultrahigh concentration of a ceramic ion conductor(Na_(3)SbS_(4))to build an ionconduction“highway”,and a polymer(polyethylene oxide,2 wt%)as a flexible host to prepare a polymer-inceramic ion-conducting membrane of approximately 40μm.Without the use of any salt(e.g.,NaPF_(6)),the resulting membrane exhibits a threefold increase in electronic ASR and a twofold decrease in ionic ASR compared with a pure ceramic counterpart.The activation energy for sodium-ion transport is only 190 meV in the membrane,similar to that in pure ceramic,suggesting ion transport predominantly occurs through a percolated network of ion-conducting ceramic particles.The salt-free design also provides an opportunity to suppress dendritic metal electrodeposits,according to a recently refined chemomechanical model of metal deposition.Our work suggests that salt is not always necessary in composite solid-state electrolytes,which broadens the choice of polymers to allow the optimization of other desired attributes,such as mechanical strength,chemical/electrochemical stability,and cost. | Bin Tang Yibo Zhao Zhiyi Wang Shiwei Chen Yifan Wu Yuming Tseng Lujiang Li Yunlong Guo Zhen Zhou Shou-Hang Bo | 2021 | eScience2021，1，2： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员