The high Li-ion conductivity of the Li7P3S11 sulfide-based solid electrolyte makes it a promising candidate for all-solid-state lithium batteries. The Li-ion transport over electrode-electrolyte and electrolyteelectro...The high Li-ion conductivity of the Li7P3S11 sulfide-based solid electrolyte makes it a promising candidate for all-solid-state lithium batteries. The Li-ion transport over electrode-electrolyte and electrolyteelectrolyte interfaces, vital for the performance of solid-state batteries, is investigated by impedance spectroscopy and solid-state NMR experiments. An all-solid-state Li-ion battery is assembled with the Li7P3S11 electrolyte, nano-Li2S cathode and Li-In foil anode, showing a relatively large initial discharge capacity of 1139.5 m Ah/g at a current density of 0.064 m A/cm^ 2 retaining 850.0 m Ah/g after 30 cycles. Electrochemical impedance spectroscopy suggests that the decrease in capacity over cycling is due to the increased interfacial resistance between the electrode and the electrolyte. 1D exchange ^7Li NMR quantifies the interfacial Li-ion transport between the uncycled electrode and the electrolyte, resulting in a diffusion coefficient of 1.70(3) ×10^-14cm^2/s at 333 K and an energy barrier of 0.132 e V for the Li-ion transport between Li2S cathode and Li7P3S11 electrolyte. This indicates that the barrier for Li-ion transport over the electrode-electrolyte interface is small. However, the small diffusion coefficient for Li-ion diffusion between the Li2S and the Li7P3S11 suggests that these contact interfaces between electrode and electrolyte are relatively scarce, challenging the performance of these solid-state batteries.展开更多
INFOPRINT 2008,The 11th Beijing International Printing Information Conference was held on November 28, 2008 in Beijing Friendship Hotel,which is sponsored by PEIAC,Printing and Printing Equipment Industries Associatio...INFOPRINT 2008,The 11th Beijing International Printing Information Conference was held on November 28, 2008 in Beijing Friendship Hotel,which is sponsored by PEIAC,Printing and Printing Equipment Industries Association of China.Xu Jinfeng,vice chairman & secretary general of PEIAC and Tan Junqiao,advisor of展开更多
In this series of treatment, 100 cases of acute tonsillitis were treated using pricking blood therapy. After 1 session of treatment, 36 cases were cured; after 2 sessions, 44 cured and after 3 sessions, 18 cured, with...In this series of treatment, 100 cases of acute tonsillitis were treated using pricking blood therapy. After 1 session of treatment, 36 cases were cured; after 2 sessions, 44 cured and after 3 sessions, 18 cured, with the cure rate being 98%. This therapy works very well in treating acute tonsillitis.展开更多
Objective To observe the effect of acupuncture at Quchi(LI11)on the serum interleukin-2(IL-2)level and the severity of uremic pruritus(UP)in hemodialysis patients.Methods Sixty hemodialysis patients with UP were rando...Objective To observe the effect of acupuncture at Quchi(LI11)on the serum interleukin-2(IL-2)level and the severity of uremic pruritus(UP)in hemodialysis patients.Methods Sixty hemodialysis patients with UP were randomized into an acupuncture group and a control group,with 30 cases in each group.In the acupuncture group,patients were treated with acupuncture at Quchi(LI11)twice a week for six weeks.In the control group,each patient received a placebo treatment(sham acupuncture).Before and after the intervention,the pruritis severity was examined using a 5-D scale,and the serum IL-2 level was measured using an enzyme-linked immunosorbent assay kit.Results There were no statistically significant differences in the demographic or clinical factors between the control group and the acupuncture group at baseline.The reduction in pruritus severity in patients was more significant in the acupuncture group(P=0.027).Acupuncture therapy also significantly decreased the serum IL-2 level in the patients(P=0.011).Throughout the acupuncture procedures,the incidence of pain and mild bleeding was 3.6%and 2.5%,respectively.Conclusion Six-week acupuncture treatment at Quchi(LI11)can effectively decrease the severity of UP and the serum IL-2 level.Large-scale,long-duration,and multi-center studies are needed to fully understand the role of IL-2 in inflammation and neuroimmune stimulation during acupuncture.展开更多
基金funding from the European Research Council under the European Union’s Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement no.[307161] of M.W.
文摘The high Li-ion conductivity of the Li7P3S11 sulfide-based solid electrolyte makes it a promising candidate for all-solid-state lithium batteries. The Li-ion transport over electrode-electrolyte and electrolyteelectrolyte interfaces, vital for the performance of solid-state batteries, is investigated by impedance spectroscopy and solid-state NMR experiments. An all-solid-state Li-ion battery is assembled with the Li7P3S11 electrolyte, nano-Li2S cathode and Li-In foil anode, showing a relatively large initial discharge capacity of 1139.5 m Ah/g at a current density of 0.064 m A/cm^ 2 retaining 850.0 m Ah/g after 30 cycles. Electrochemical impedance spectroscopy suggests that the decrease in capacity over cycling is due to the increased interfacial resistance between the electrode and the electrolyte. 1D exchange ^7Li NMR quantifies the interfacial Li-ion transport between the uncycled electrode and the electrolyte, resulting in a diffusion coefficient of 1.70(3) ×10^-14cm^2/s at 333 K and an energy barrier of 0.132 e V for the Li-ion transport between Li2S cathode and Li7P3S11 electrolyte. This indicates that the barrier for Li-ion transport over the electrode-electrolyte interface is small. However, the small diffusion coefficient for Li-ion diffusion between the Li2S and the Li7P3S11 suggests that these contact interfaces between electrode and electrolyte are relatively scarce, challenging the performance of these solid-state batteries.
基金Supported by National Basic Research Program of China grant(to Zhu B),No.2011CB505201National Natural Science Foundation of China No.81130063 and No.81173345(to Zhu B and Gao X)
文摘AIM: To investigate the effect and mechanism of acupuncture at heterotopic acupoints on jejunal motility, particularly in pathological conditions.
文摘INFOPRINT 2008,The 11th Beijing International Printing Information Conference was held on November 28, 2008 in Beijing Friendship Hotel,which is sponsored by PEIAC,Printing and Printing Equipment Industries Association of China.Xu Jinfeng,vice chairman & secretary general of PEIAC and Tan Junqiao,advisor of
文摘In this series of treatment, 100 cases of acute tonsillitis were treated using pricking blood therapy. After 1 session of treatment, 36 cases were cured; after 2 sessions, 44 cured and after 3 sessions, 18 cured, with the cure rate being 98%. This therapy works very well in treating acute tonsillitis.
文摘Objective To observe the effect of acupuncture at Quchi(LI11)on the serum interleukin-2(IL-2)level and the severity of uremic pruritus(UP)in hemodialysis patients.Methods Sixty hemodialysis patients with UP were randomized into an acupuncture group and a control group,with 30 cases in each group.In the acupuncture group,patients were treated with acupuncture at Quchi(LI11)twice a week for six weeks.In the control group,each patient received a placebo treatment(sham acupuncture).Before and after the intervention,the pruritis severity was examined using a 5-D scale,and the serum IL-2 level was measured using an enzyme-linked immunosorbent assay kit.Results There were no statistically significant differences in the demographic or clinical factors between the control group and the acupuncture group at baseline.The reduction in pruritus severity in patients was more significant in the acupuncture group(P=0.027).Acupuncture therapy also significantly decreased the serum IL-2 level in the patients(P=0.011).Throughout the acupuncture procedures,the incidence of pain and mild bleeding was 3.6%and 2.5%,respectively.Conclusion Six-week acupuncture treatment at Quchi(LI11)can effectively decrease the severity of UP and the serum IL-2 level.Large-scale,long-duration,and multi-center studies are needed to fully understand the role of IL-2 in inflammation and neuroimmune stimulation during acupuncture.
