CA2596239A1 - Lithium-based electrochemically active materials and preparation thereof - Google Patents

Lithium-based electrochemically active materials and preparation thereof Download PDF

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Publication number
CA2596239A1
CA2596239A1 CA002596239A CA2596239A CA2596239A1 CA 2596239 A1 CA2596239 A1 CA 2596239A1 CA 002596239 A CA002596239 A CA 002596239A CA 2596239 A CA2596239 A CA 2596239A CA 2596239 A1 CA2596239 A1 CA 2596239A1
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Canada
Prior art keywords
lithium
composition
carbon
group
mixtures
Prior art date
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Granted
Application number
CA002596239A
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French (fr)
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CA2596239C (en
Inventor
Jeremy Barker
M. Yazid Saidi
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Lithium Werks Technology BV
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Individual
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Filing date
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Priority claimed from US09/484,799 external-priority patent/US7001690B2/en
Application filed by Individual filed Critical Individual
Priority claimed from CA002460875A external-priority patent/CA2460875C/en
Publication of CA2596239A1 publication Critical patent/CA2596239A1/en
Application granted granted Critical
Publication of CA2596239C publication Critical patent/CA2596239C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

The invention provides novel lithium-mixed metal materials which, upon electrochemical interaction, release lithium ions, and are capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrode formed from the novel lithium-mixed metal materials. Methods for making the novel lithium--mixed metal materials and methods for using such lithium--mixed metal materials in electrochemical cells are also provided. The lithium-mixed metal materials comprise lithium and at least one other metal besides lithium. Preferred materials are lithium-mixed metal phosphates which contain lithium and two other metals besides lithium.

Claims (11)

1. A composition, comprising:

a lithium-mixed metal compound represented by the nominal general formula Li a Fe1-y M y PO4;

wherein 0<y<1, a is about 1, and M is at least one selected from the group consisting of Mg, Ca, Zn, Sr, Pb, Cd, Sn, BA, Be, and mixtures thereof; and carbon associated with the lithium-mixed metal material, wherein the composition is prepared by a process which includes the step of reacting a lithium compound and a metal compound.
2. The composition of claim 1, wherein the reacting step comprises the steps of:

forming a mixture comprising starting materials in proportions to provide the active material, and carbon; and heating the mixture for a time and at a temperature sufficient to form the active material.
3. The composition of claim 1 or 2, wherein the mixture is heated in a non-oxidizing atmosphere.
4. The composition of claim 3, wherein the non-oxidizing atmosphere is selected from the group consisting of argon, nitrogen, a mixture of carbon-monoxide and carbon-dioxide generated by heating the carbon, and mixtures thereof.
5. The composition of any one of claims 1 to 4, wherein the carbon is present in an amount sufficient to reduce the oxidation state of the metal compound to an elemental state.
6. The composition of claim 1 or 2, wherein M is selected from the group consisting of Be, Mg, Ca, Sr, Ba, and mixtures thereof.
7. The composition of claim 1 or 2, wherein M is selected from the group consisting of Zn, Cd, and mixtures thereof.
8. The composition of claim 1 or 2, wherein M is selected from the group consisting of Sn, PB, and mixtures thereof.
9. The composition of any one of claims 1 to 8, wherein the lithium compound is selected from the group consisting of lithium acetate, lithium hydroxide, lithium nitrate, lithium oxalate, lithium oxide, lithium hydroxide monohydride, lithium hydrogen carbonate, lithium dihydrogen phosphate, and lithium carbonate.
10. The composition of any one of claims 1 to 10, wherein the composition is a single phase material.
11. The composition of claim 20, further including a composition according to claim 13.
CA2596239A 2000-01-18 2000-12-22 Lithium-based electrochemically active materials and preparation thereof Expired - Lifetime CA2596239C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/484,799 2000-01-18
US09/484,799 US7001690B2 (en) 2000-01-18 2000-01-18 Lithium-based active materials and preparation thereof
CA002460875A CA2460875C (en) 2000-01-18 2000-12-22 Lithium-based electrochemically active materials and preparation thereof

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002460875A Division CA2460875C (en) 2000-01-18 2000-12-22 Lithium-based electrochemically active materials and preparation thereof

Publications (2)

Publication Number Publication Date
CA2596239A1 true CA2596239A1 (en) 2001-07-26
CA2596239C CA2596239C (en) 2010-08-03

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Family Applications (1)

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CA2596239A Expired - Lifetime CA2596239C (en) 2000-01-18 2000-12-22 Lithium-based electrochemically active materials and preparation thereof

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CA (1) CA2596239C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110182780A (en) * 2019-05-13 2019-08-30 江苏亨利锂电新材料有限公司 A kind of densification spherical LiFePO 4 and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110182780A (en) * 2019-05-13 2019-08-30 江苏亨利锂电新材料有限公司 A kind of densification spherical LiFePO 4 and preparation method thereof
CN110182780B (en) * 2019-05-13 2023-07-14 四川乾元电子材料有限公司 Densification spherical lithium iron phosphate and preparation method thereof

Also Published As

Publication number Publication date
CA2596239C (en) 2010-08-03

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