公开(公告)号：US20220115706A1

公开(公告)日：2022-04-14

申请号：US17537149

申请日：2021-11-29

Applicant: Battelle Memorial Institute

Inventor： Xia Cao ,  Ji-Guang Zhang ,  Wu Xu

IPC: H01M10/0569 ,  H01M10/0567 ,  H01M10/0568 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M4/38

Abstract: Electrolytes for lithium ion batteries with carbon-based, silicon-based, or carbon- and silicon-based anodes include a lithium salt; a nonaqueous solvent comprising at least one of the following components: (i) an ester, (ii) a sulfur-containing solvent, (iii) a phosphorus-containing solvent, (iv) an ether, (v) a nitrile, or any combination thereof, wherein the lithium salt is soluble in the solvent; a diluent comprising a fluoroalkyl ether, a fluorinated orthoformate, a fluorinated carbonate, a fluorinated borate, a fluorinated phosphate, a fluorinated phosphite, or any combination thereof, wherein the lithium salt has a solubility in the diluent at least 10 times less than a solubility of the lithium salt in the solvent; and an additive having a different composition than the lithium salt, a different composition than the solvent, and a different composition than the diluent. In some electrolytes, the nonaqueous solvent comprises an ester.

公开(公告)号：US11094966B2

公开(公告)日：2021-08-17

申请号：US16230531

申请日：2018-12-21

Applicant: Battelle Memorial Institute

Inventor： Xiaodi Ren ,  Wu Xu ,  Ji-Guang Zhang

IPC: H01M10/0569 ,  H01M4/133 ,  H01M4/131 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M4/134 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0568

Abstract: Disclosed herein are embodiments of an electrolyte that is stable and efficient at high voltages. The electrolyte can be used in combination with certain cathodes that exhibit poor activity at such high voltages with other types of electrolytes and can further be used in combination with a variety of anodes. In some embodiments, the electrolyte can be used in battery systems comprising a lithium cobalt oxide cathode and lithium metal anodes, silicon anodes, silicon/graphite composite anodes, graphite anodes, and the like.

公开(公告)号：US20210218062A1

公开(公告)日：2021-07-15

申请号：US17144600

申请日：2021-01-08

Applicant: Battelle Memorial Institute

Inventor： Wu Xu ,  Ji-Guang Zhang ,  Hao Jia ,  Xianhui Zhang ,  Xia Cao ,  Sujong Chae ,  Ran Yi ,  Qiuyan Li ,  Won-Jin Kwak ,  Xiaolin Li

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M4/525 ,  H01M4/505

Abstract: Electrolytes for lithium ion batteries with carbon-based, silicon-based, or carbon- and silicon-based anodes include a lithium salt; a nonaqueous solvent comprising at least one of the following components: (i) an ester, (ii) a sulfur-containing solvent, (iii) a phosphorus-containing solvent, (iv) an ether, (v) a nitrile, or any combination thereof, wherein the lithium salt is soluble in the solvent; a diluent comprising a fluoroalkyl ether, a fluorinated orthoformate, a fluorinated carbonate, a fluorinated borate, or a combination thereof, wherein the lithium salt has a solubility in the diluent at least 10 times less than a solubility of the lithium salt in the solvent; and an additive having a different composition than the lithium salt, a different composition than the solvent, and a different composition than the diluent.

公开(公告)号：US20190252689A1

公开(公告)日：2019-08-15

申请号：US16337812

申请日：2017-10-11

Applicant: Battelle Memorial Institute

Inventor： Wu Xu ,  Bin Liu ,  Ji-Guang Zhang

IPC: H01M4/88 ,  H01M12/08 ,  H01M4/96 ,  H01M4/38

CPC classification number: H01M4/8878 ,  H01M4/04 ,  H01M4/382 ,  H01M4/88 ,  H01M4/96 ,  H01M12/08 ,  Y02E60/128

Abstract: A one-step in-situ electrochemical pre-charging strategy to generate thin protective films simultaneously on the surfaces of both carbon-based air-electrode and metal anode under an inert atmosphere is disclosed. The thin-films are formed from the decomposition of electrolyte during the in-situ electrochemical pre-charging process in an inert environment and can protect both a carbon air-electrode and a metal anode prior to conventional metal-oxygen discharge/charge cycling where reactive reduced oxygen species are formed. Lithium-oxygen cells after such pre-treatment demonstrate significantly extended cycle life which is far more than those without pre-treatment.

公开(公告)号：US10246337B2

公开(公告)日：2019-04-02

申请号：US15436027

申请日：2017-02-17

Applicant: Battelle Memorial Institute

Inventor： Xiaolin Li ,  Ji-Guang Zhang ,  Jun Liu

IPC: C01B33/023

Abstract: Embodiments of a safe, low-temperature reaction system and method for preparing porous silicon are disclosed. The porous silicon is prepared from porous silica, a low-melting metal halide, and a metal comprising aluminum, magnesium, or a combination thereof. Advantageously, embodiments of the disclosed methods can be performed at temperatures ≤400° C. Silicon produced by the disclosed methods has a porosity that is equal to or greater than the porous silica precursor. The porous silicon is suitable for use in electrodes.

公开(公告)号：US20180254524A1

公开(公告)日：2018-09-06

申请号：US15599298

申请日：2017-05-18

Applicant: Battelle Memorial Institute

Inventor： Ji-Guang Zhang ,  Jianming Zheng ,  Shuru Chen

IPC: H01M10/0569 ,  H01M10/0568 ,  H01M4/38 ,  H01M10/052 ,  H01M10/24

CPC classification number: H01M10/0569 ,  H01M10/052 ,  H01M10/054 ,  H01M10/0568 ,  H01M12/08 ,  H01M2300/004 ,  Y02E60/128

Abstract: Embodiments of localized superconcentrated electrolytes (LSEs) for stable operation of electrochemical devices, such as rechargeable batteries, supercapacitors, and sensors, are disclosed. Electrochemical devices, such as rechargeable batteries, supercapacitors, and sensors, including the LSEs are also disclosed. The LSEs include an active salt, a solvent in which the active salt is soluble, and a diluent in which the active salt is insoluble or poorly soluble. In certain embodiments, such as when the solvent and diluent are immiscible, the LSE further includes a bridge solvent.

公开(公告)号：US20160126582A1

公开(公告)日：2016-05-05

申请号：US14529840

申请日：2014-10-31

Applicant: Battelle Memorial Institute

Inventor： Jie Xiao ,  Yuyan Shao ,  Dongping Lu ,  Wendy D. Bennett ,  Jun Liu ,  Ji-Guang Zhang ,  Gordon L. Graff

IPC: H01M10/02 ,  H01M10/04 ,  H01M10/058 ,  H01M10/0525 ,  H01M10/0569

CPC classification number: H01M10/0569 ,  H01M4/133 ,  H01M4/136 ,  H01M4/58 ,  H01M10/0525 ,  H01M2300/0028

Abstract: Disclosed are preformed solid electrolyte interface (SEI) film graphite electrodes in lithium-sulfur based chemistry energy storage systems and methods of making the preformed SEI films on graphite electrodes to expand the use of graphite-based electrodes in previously non-graphite anode energy systems, such as lithium-sulfur battery systems. Also disclosed are lithium-ion sulfur battery systems comprising electrolytes that do not include an alkyl carbonate, such as those that do not include EC, and graphite anodes having preformed alkyl carbonate, such as EC-based SEI films.

Abstract translation: 公开了基于锂硫的化学能量存储系统中的预制的固体电解质界面（SEI）膜石墨电极以及在石墨电极上制备预制的SEI膜的方法，以扩大在以前的非石墨阳极能量系统中使用石墨基电极， 如锂硫电池系统。 还公开了包含不包括碳酸烷基酯如不包括EC的电解质的锂离子硫电池系统，以及具有预制的碳酸烷基酯的石墨阳极，例如基于EC的SEI膜。

公开(公告)号：US20230378543A1

公开(公告)日：2023-11-23

申请号：US18326738

申请日：2023-05-31

Applicant: Battelle Memorial Institute

Inventor： Xia Cao ,  Ji-Guang Zhang ,  Wu Xu

IPC: H01M10/0569 ,  H01M10/0567 ,  H01M10/0568 ,  H01M4/505 ,  H01M4/587 ,  H01M4/38 ,  H01M4/525

CPC classification number: H01M10/0569 ,  H01M10/0567 ,  H01M10/0568 ,  H01M4/505 ,  H01M4/587 ,  H01M4/386 ,  H01M4/525 ,  H01M2300/0051 ,  H01M2300/0042

Abstract: Electrolytes for lithium ion batteries with carbon-based, silicon-based, or carbon- and silicon-based anodes include a lithium salt; a nonaqueous solvent comprising at least one of the following components: (i) an ester, (ii) a sulfur-containing solvent, (iii) a phosphorus-containing solvent, (iv) an ether, (v) a nitrile, or any combination thereof, wherein the lithium salt is soluble in the solvent; a diluent comprising a fluoroalkyl ether, a fluorinated orthoformate, a fluorinated carbonate, a fluorinated borate, a fluorinated phosphate, a fluorinated phosphite, or any combination thereof, wherein the lithium salt has a solubility in the diluent at least 10 times less than a solubility of the lithium salt in the solvent; and an additive having a different composition than the lithium salt, a different composition than the solvent, and a different composition than the diluent. In some electrolytes, the nonaqueous solvent comprises an ester.

公开(公告)号：US11600859B2

公开(公告)日：2023-03-07

申请号：US16688929

申请日：2019-11-19

Applicant: Battelle Memorial Institute

Inventor： Xia Cao ,  Ji-Guang Zhang ,  Wu Xu

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/0525 ,  H01M10/0568

Abstract: Localized superconcentrated electrolytes (LSEs) and electrochemical devices including the LSEs are disclosed. The LSE includes an active salt, a solvent in which the active salt is soluble, and a diluent in which the active salt is insoluble or poorly soluble, wherein the diluent includes a fluorinated orthoformate.

公开(公告)号：US20200161706A1

公开(公告)日：2020-05-21

申请号：US16688929

申请日：2019-11-19

Applicant: Battelle Memorial Institute

Inventor： Xia Cao ,  Ji-Guang Zhang ,  Wu Xu

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/0525

Abstract: Localized superconcentrated electrolytes (LSEs) and electrochemical devices including the LSEs are disclosed. The LSE includes an active salt, a solvent in which the active salt is soluble, and a diluent in which the active salt is insoluble or poorly soluble, wherein the diluent includes a fluorinated orthoformate.