Localized Electrolyte Grain Engineering to Suppress Li Intrusion in All-Solid-State Batteries.

Li intrusion is the primary factor contributing to the undesirable cycling durability and rate capability of all-solid-state lithium metal batteries. However, conventional engineering methodologies for solid electrolytes (SEs) that focus on crystalline scales, such as doping, have limited efficacy in addressing this issue, as they not only involve cumbersome trial-and-error processes but also struggle to simultaneously optimize the multiple macroscopic properties necessary for effectively suppressing Li intrusion. Herein, rather than following the conventional practice of SE engineering, it is concentrated on optimizing SEs at the grain-aggregate level.

A scalable Li-Al-Cl stratified structure for stable all-solid-state lithium metal batteries.

Sulfides are promising electrolyte materials for all-solid-state Li metal batteries due to their high ionic conductivity and machinability. However, compatibility issues at the negative electrode/sulfide electrolyte interface hinder their practical implementation. Despite previous studies have proposed considerable strategies to improve the negative electrode/sulfide electrolyte interfacial stability, industrial-scale engineering solutions remain elusive.

Tin dioxide-based nanomaterials as anodes for lithium-ion batteries.

The development of new electrode materials for lithium-ion batteries (LIBs) has attracted significant attention because commercial anode materials in LIBs, like graphite, may not be able to meet the increasing energy demand of new electronic devices. Tin dioxide (SnO) is considered as a promising alternative to graphite due to its high specific capacity. However, the large volume changes of SnO during the lithiation/delithiation process lead to capacity fading and poor cycling performance.

Improving the Conductivity of Solid Polymer Electrolyte by Grain Reforming.

Polyethylene oxide (PEO)-based solid polymer electrolyte (SPE) is considered to have great application prospects in all-solid-state li-ion batteries. However, the application of PEO-based SPEs is hindered by the relatively low ionic conductivity, which strongly depends on its crystallinity and density of grain boundaries. In this work, a simple and effective press-rolling method is applied to reduce the crystallinity of PEO-based SPEs for the first time.

[Effect of phytohemagglutinin (PHA) from Yunnan white kidney bean on development of mouse embryos].

Objective: To study the effect of different concentration of phytohemagglutinin (PHA) on mouse embryo development.

Method: In experiment 1, crude and purified PHA extracted from Yunnan white kidney bean with different concentration were added into M16 culture medium, the final concentration of PHA were: 50, 100, 200, 500, 1 000, 2 000 and 5 000 mg x L(-1) respectively. 2-cell stage embryos were collected and cultured in PHA containing or control medium for 72-96 h and their development were recorded.

Cotransfer of parthenogenetic embryos improves the pregnancy and implantation of nuclear transfer embryos in mouse.

The majority of somatic cell nuclear transfer (SCNT) clones dies in the peri- or postimplantation period. Improvement of the full-term healthy pregnancy rates is a key issue for the economical viability and animal welfare profile of SCNT technology. In this study the effects of cotransfer of parthenogenetic or fertilized embryos on the pregnancy and implantation of SCNT mouse embryos have been investigated.