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Title: Battery designs with high capacity anode materials and cathode materials

Abstract

Improved high energy capacity designs for lithium ion batteries are described that take advantage of the properties of high specific capacity anode active compositions and high specific capacity cathode active compositions. In particular, specific electrode designs provide for achieving very high energy densities. Furthermore, the complex behavior of the active materials is used advantageously in a radical electrode balancing design that significantly reduced wasted electrode capacity in either electrode when cycling under realistic conditions of moderate to high discharge rates and/or over a reduced depth of discharge.

Inventors:
; ; ; ; ;
Publication Date:
Research Org.:
Zenlabs Energy, Inc. Newark, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1397239
Patent Number(s):
9,780,358
Application Number:
13/777,722
Assignee:
Zenlabs Energy, Inc. ARPA-E
DOE Contract Number:
AR0000034
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Feb 26
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE

Citation Formats

Masarapu, Charan, Anguchamy, Yogesh Kumar, Han, Yongbong, Deng, Haixia, Kumar, Sujeet, and Lopez, Herman A. Battery designs with high capacity anode materials and cathode materials. United States: N. p., 2017. Web.
Masarapu, Charan, Anguchamy, Yogesh Kumar, Han, Yongbong, Deng, Haixia, Kumar, Sujeet, & Lopez, Herman A. Battery designs with high capacity anode materials and cathode materials. United States.
Masarapu, Charan, Anguchamy, Yogesh Kumar, Han, Yongbong, Deng, Haixia, Kumar, Sujeet, and Lopez, Herman A. Tue . "Battery designs with high capacity anode materials and cathode materials". United States. doi:. https://www.osti.gov/servlets/purl/1397239.
@article{osti_1397239,
title = {Battery designs with high capacity anode materials and cathode materials},
author = {Masarapu, Charan and Anguchamy, Yogesh Kumar and Han, Yongbong and Deng, Haixia and Kumar, Sujeet and Lopez, Herman A.},
abstractNote = {Improved high energy capacity designs for lithium ion batteries are described that take advantage of the properties of high specific capacity anode active compositions and high specific capacity cathode active compositions. In particular, specific electrode designs provide for achieving very high energy densities. Furthermore, the complex behavior of the active materials is used advantageously in a radical electrode balancing design that significantly reduced wasted electrode capacity in either electrode when cycling under realistic conditions of moderate to high discharge rates and/or over a reduced depth of discharge.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 03 00:00:00 EDT 2017},
month = {Tue Oct 03 00:00:00 EDT 2017}
}

Patent:

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  • Embodiments described herein relate generally to devices, systems and methods of producing high energy density batteries having a semi-solid cathode that is thicker than the anode. An electrochemical cell can include a positive electrode current collector, a negative electrode current collector and an ion-permeable membrane disposed between the positive electrode current collector and the negative electrode current collector. The ion-permeable membrane is spaced a first distance from the positive electrode current collector and at least partially defines a positive electroactive zone. The ion-permeable membrane is spaced a second distance from the negative electrode current collector and at least partially definesmore » a negative electroactive zone. The second distance is less than the first distance. A semi-solid cathode that includes a suspension of an active material and a conductive material in a non-aqueous liquid electrolyte is disposed in the positive electroactive zone, and an anode is disposed in the negative electroactive zone.« less
  • Embodiments described herein relate generally to devices, systems and methods of producing high energy density batteries having a semi-solid cathode that is thicker than the anode. An electrochemical cell can include a positive electrode current collector, a negative electrode current collector and an ion-permeable membrane disposed between the positive electrode current collector and the negative electrode current collector. The ion-permeable membrane is spaced a first distance from the positive electrode current collector and at least partially defines a positive electroactive zone. The ion-permeable membrane is spaced a second distance from the negative electrode current collector and at least partially definesmore » a negative electroactive zone. The second distance is less than the first distance. A semi-solid cathode that includes a suspension of an active material and a conductive material in a non-aqueous liquid electrolyte is disposed in the positive electroactive zone, and an anode is disposed in the negative electroactive zone.« less
  • High capacity silicon based anode active materials are described for lithium ion batteries. These materials are shown to be effective in combination with high capacity lithium rich cathode active materials. Supplemental lithium is shown to improve the cycling performance and reduce irreversible capacity loss for at least certain silicon based active materials. In particular silicon based active materials can be formed in composites with electrically conductive coatings, such as pyrolytic carbon coatings or metal coatings, and composites can also be formed with other electrically conductive carbon components, such as carbon nanofibers and carbon nanoparticles. Additional alloys with silicon are explored.
  • Silicon oxide based materials, including composites with various electrical conductive compositions, are formulated into desirable anodes. The anodes can be effectively combined into lithium ion batteries with high capacity cathode materials. In some formulations, supplemental lithium can be used to stabilize cycling as well as to reduce effects of first cycle irreversible capacity loss. Batteries are described with surprisingly good cycling properties with good specific capacities with respect to both cathode active weights and anode active weights.
  • Described here is a method for making an anode of a rechargeable battery, comprising incorporating a composition comprising Li xM into the anode, wherein M is a Group 14 element. Also described here is an anode comprising a composition comprising Li xM, wherein M is a Group 14 element, and a rechargeable battery comprising the anode.