公开(公告)号：US10170795B2

公开(公告)日：2019-01-01

申请号：US14869647

申请日：2015-09-29

申请人： Battelle Memorial Institute

发明人： Ji-Guang Zhang ,  Ruiguo Cao ,  Wesley A. Henderson ,  Kuber Mishra ,  Wu Xu

IPC分类号： H01M10/0568 ,  H01M10/054 ,  H01M10/0569 ,  H01M4/38 ,  H01M4/66 ,  H01M4/58

摘要： Embodiments of a non-aqueous electrolyte for a rechargeable sodium (Na)-based battery comprise a sodium salt and a nonaqueous solvent, the electrolyte having a sodium salt concentration ≥2.5 M or a solvent-sodium salt mole ratio ≤4:1. Na-based rechargeable batteries including the electrolyte exhibit both high cycling stability and high coulombic efficiency (CE). Some embodiments of the disclosed batteries attain a CE≥80% within 10-30 charge-discharge cycles and maintain a CE≥80% for at least 100 charge-discharge cycles. In certain embodiments, the battery is an anode-free battery in the as-assembled initial state.

公开(公告)号：US09865900B2

公开(公告)日：2018-01-09

申请号：US14595065

申请日：2015-01-12

申请人： BATTELLE MEMORIAL INSTITUTE

发明人： Wu Xu ,  Hongfa Xiang ,  Jiguang Zhang ,  Ruiguo Cao

IPC分类号： H01M10/0567 ,  H01M10/0564 ,  H01M10/0569 ,  H01M10/0525 ,  H01M10/0568 ,  H01M4/04 ,  H01M4/36 ,  H01M4/587

CPC分类号： H01M10/0567 ,  H01M4/0445 ,  H01M4/366 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0028 ,  H01M2300/0037 ,  Y02T10/7011

摘要： An energy storage device comprising: (A) an anode comprising graphite; and (B) an electrolyte composition comprising: (i) at least one carbonate solvent; (ii) an additive selected from CsPF6, RbPF6, Sr(PF6)2, Ba(PF6)2, or a mixture thereof; and (iii) a lithium salt.

公开(公告)号：US20160072151A1

公开(公告)日：2016-03-10

申请号：US14869647

申请日：2015-09-29

申请人： Battelle Memorial Institute

发明人： Ji-Guang Zhang ,  Ruiguo Cao ,  Wesley A. Henderson ,  Kuber Mishra ,  Wu Xu

IPC分类号： H01M10/0568 ,  H01M4/58 ,  H01M4/38 ,  H01M4/66 ,  H01M10/054 ,  H01M10/0569

CPC分类号： H01M10/0568 ,  H01M4/381 ,  H01M4/5815 ,  H01M4/661 ,  H01M4/663 ,  H01M10/054 ,  H01M10/0569 ,  H01M2300/0025 ,  H01M2300/0028 ,  H01M2300/0037

摘要： Embodiments of a non-aqueous electrolyte for a rechargeable sodium (Na)-based battery comprise a sodium salt and a nonaqueous solvent, the electrolyte having a sodium salt concentration ≧2.5 M or a solvent-sodium salt mole ratio ≦4:1. Na-based rechargeable batteries including the electrolyte exhibit both high cycling stability and high coulombic efficiency (CE). Some embodiments of the disclosed batteries attain a CE≧80% within 10-30 charge-discharge cycles and maintain a CE≧80% for at least 100 charge-discharge cycles. In certain embodiments, the battery is an anode-free battery in the as-assembled initial state.

摘要翻译： 用于可再充电的钠（钠）电池的非水电解质的实施方案包括钠盐和非水溶剂，电解质的钠盐浓度≥2.5M或溶剂 - 钠盐摩尔比＆nlE; 4:1。 包括电解质的钠基可再充电电池具有高的循环稳定性和高的库仑效率（CE）。 所公开的电池的一些实施例在10-30次充放电循环中达到CE≥80％，并且在至少100次充放电循环中保持CE≥80％。 在某些实施例中，电池是处于组装初始状态的无阳极电池。

公开(公告)号：US20150125759A1

公开(公告)日：2015-05-07

申请号：US14595065

申请日：2015-01-12

申请人： BATTELLE MEMORIAL INSTITUTE

发明人： Wu Xu ,  Hongfa Xiang ,  Jiguang Zhang ,  Ruiguo Cao

IPC分类号： H01M10/0567 ,  H01M10/0525 ,  H01M4/583 ,  H01M4/505 ,  H01M4/58 ,  H01M4/525 ,  H01M10/0569 ,  H01M10/0568

CPC分类号： H01M10/0567 ,  H01M4/0445 ,  H01M4/366 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0028 ,  H01M2300/0037 ,  Y02T10/7011

摘要： An energy storage device comprising: (A) an anode comprising graphite; and (B) an electrolyte composition comprising: (i) at least one carbonate solvent; (ii) an additive selected from CsPF6, RbPF6, Sr(PF6)2, Ba(PF6)2, or a mixture thereof; and (iii) a lithium salt.

摘要翻译： 一种储能装置，包括：（A）包括石墨的阳极; 和（B）电解质组合物，其包含：（i）至少一种碳酸酯溶剂; （ii）选自CsPF 6，RbPF 6，Sr（PF 6）2，Ba（PF 6）2或其混合物的添加剂; 和（iii）锂盐。