公开(公告)号：US10170795B2

公开(公告)日：2019-01-01

申请号：US14869647

申请日：2015-09-29

Applicant: Battelle Memorial Institute

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

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

Abstract: 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：US20160126580A1

公开(公告)日：2016-05-05

申请号：US14530442

申请日：2014-10-31

Applicant: Battelle Memorial Institute

Inventor： Jie Xiao ,  Jun Liu ,  Huilin Pan ,  Wesley A. Henderson

IPC: H01M8/18 ,  H01M4/66 ,  H01M4/58 ,  H01M8/20 ,  H01M4/38

CPC classification number: H01M4/663 ,  H01M8/20 ,  H01M12/08 ,  Y02E60/128

Abstract: A device comprising: a lithium sulfur redox flow battery comprising an electrolyte composition comprising: (i) a dissolved Li2Sx electroactive salt, wherein x≧4; (ii) a solvent selected from dimethyl sulfoxide, tetrahydrofuran, or a mixture thereof; and (iii) a supporting salt at a concentration of at least 2 M, as measured by moles of supporting salt divided by the volume of the solvent without considering the volume change of the electrolyte after dissolving the supporting salt.

Abstract translation: 一种装置，包括：锂硫氧化物流电池，其包含电解质组合物，其包含：（i）溶解的Li 2 S x电活性盐，其中x≥4; （ii）选自二甲基亚砜，四氢呋喃或其混合物的溶剂; 和（iii）浓度至少为2M的支撑盐，其通过支撑盐的摩尔数除以溶剂的体积测量，而不考虑溶解支持盐后的电解质的体积变化。

公开(公告)号：US20160072151A1

公开(公告)日：2016-03-10

申请号：US14869647

申请日：2015-09-29

Applicant: Battelle Memorial Institute

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

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

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

Abstract: 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.

Abstract translation: 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：US09954229B2

公开(公告)日：2018-04-24

申请号：US14530442

申请日：2014-10-31

Applicant: Battelle Memorial Institute

Inventor： Jie Xiao ,  Jun Liu ,  Huilin Pan ,  Wesley A. Henderson

IPC: H01M8/18 ,  H01M4/66 ,  H01M8/20 ,  H01M12/08

CPC classification number: H01M4/663 ,  H01M8/20 ,  H01M12/08 ,  Y02E60/128

Abstract: A device comprising: a lithium sulfur redox flow battery comprising an electrolyte composition comprising: (i) a dissolved Li2Sx electroactive salt, wherein x≥4; (ii) a solvent selected from dimethyl sulfoxide, tetrahydrofuran, or a mixture thereof; and (iii) a supporting salt at a concentration of at least 2 M, as measured by moles of supporting salt divided by the volume of the solvent without considering the volume change of the electrolyte after dissolving the supporting salt.

公开(公告)号：US10367189B2

公开(公告)日：2019-07-30

申请号：US14482312

申请日：2014-09-10

Applicant: Battelle Memorial Institute

Inventor： Ji-Guang Zhang ,  Jiangfeng Qian ,  Wu Xu ,  Wesley A. Henderson

IPC: H01M10/0564 ,  H01M4/04 ,  H01M4/66 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/40 ,  H01M10/052 ,  H01M4/525 ,  H01M4/505 ,  H01M4/02

Abstract: An anode-free rechargeable battery is disclosed. The battery includes an anode current collector and a cathode containing an active cation Mn+, where n=1, 2, or 3. The anode-free rechargeable battery further includes a separator placed between the anode current collector and the cathode. The anode-free rechargeable battery also includes an electrolyte including a salt or salt mixture containing an active cation Mn+ dissolved in a solvent or solvent mixture.

公开(公告)号：US20160261000A1

公开(公告)日：2016-09-08

申请号：US14482312

申请日：2014-09-10

Applicant: BATTELLE MEMORIAL INSTITUTE

Inventor： Ji-Guang Zhang ,  Jiangfeng Qian ,  Wu Xu ,  Wesley A. Henderson

IPC: H01M10/0525 ,  H01M4/525 ,  H01M4/04 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0565 ,  H01M4/66 ,  H01M4/505

CPC classification number: H01M4/0445 ,  H01M4/40 ,  H01M4/405 ,  H01M4/505 ,  H01M4/525 ,  H01M4/661 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2004/028 ,  Y02T10/7011

Abstract: An anode-free rechargeable battery is disclosed. The battery includes an anode current collector and a cathode containing an active cation Mn+, where n=1, 2, or 3. The anode-free rechargeable battery further includes a separator placed between the anode current collector and the cathode. The anode-free rechargeable battery also includes an electrolyte including a salt or salt mixture containing an active cation Mn+ dissolved in a solvent or solvent mixture.

Abstract translation: 公开了一种无阳极的可再充电电池。 该电池包括负极集电器和含有活性阳离子Mn +（其中n = 1,2或3）的阴极。无阳极的可再充电电池还包括置于阳极集电器和阴极之间的隔板。 无阳极的可再充电电池还包括电解质，其包含含有溶解在溶剂或溶剂混合物中的活性阳离子Mn +的盐或盐混合物。