公开(公告)号：US20140302404A1

公开(公告)日：2014-10-09

申请号：US14084075

申请日：2013-11-19

Applicant: BATTELLE MEMORIAL INSTITUTE

Inventor： Tianbiao Liu ,  Guosheng Li ,  Jun Liu ,  Yuan Shao

IPC: H01M10/0568 ,  H01M10/054

CPC classification number: H01M10/0568 ,  H01M10/054

Abstract: Electrolytes for Mg-based energy storage devices can be formed from non-nucleophilic Mg2+ sources to provide outstanding electrochemical performance and improved electrophilic susceptibility compared to electrolytes employing nucleophilic sources. The instant electrolytes are characterized by high oxidation stability (up to 3.4 V vs Mg), improved electrophile compatibility and electrochemical reversibility (up to 100% coulombic efficiency). Synthesis of the Mg2+ electrolytes utilizes inexpensive and safe magnesium dihalides as non-nucleophilic Mg2+ sources in combination with Lewis acids, MRaX3-a (for 3≧a≧1). Furthermore, addition of free-halide-anion donors can improve the coulombic efficiency of Mg electrolytes from nucleophilic or non-nucleophilic Mg2+ sources.

Abstract translation: 用于Mg基能量储存装置的电解质可以由非亲核Mg 2+源形成，以提供与使用亲核源的电解质相比优异的电化学性能和改善的亲电子敏感性。 瞬时电解质的特征在于高氧化稳定性（高达3.4V对Mg），改善的亲电子相容性和电化学可逆性（高达100％的库仑效率）。 Mg2 +电解质的合成使用廉价和安全的二卤化镁作为非路易斯酸MRaX3-a（对于3≥a≥1）的非亲核Mg 2+源。 此外，添加游离卤化物 - 阴离子供体可以提高Mg电解质从亲核或非亲核Mg2 +来源的库仑效率。