Primary lithium battery having a DME-free electrolyte

US10003086B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10003086-B2
Application numberUS-201715619810-A
CountryUS
Kind codeB2
Filing dateJun 12, 2017
Priority dateJun 14, 2016
Publication dateJun 19, 2018
Grant dateJun 19, 2018

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  1. Title

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  5. First independent claim

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Abstract

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A DME-free lithium battery includes a positive electrode, a negative electrode, a separator arranged between the positive electrode and the negative electrode, and a liquid electrolyte composed of a solvent and at least one lithium electrolyte salt and with which the electrode and the separator are impregnated, wherein the solvent includes propylene carbonate (PC) as a first solvent component and 1,3-dioxolane (DOL) as a second solvent component, and the positive electrode and/or the negative electrode have a proportion of carbon black having a BET surface area of at least 1 m 2 /g.

First claim

Opening claim text (preview).

The invention claimed is: 1. A DME-free lithium battery comprising: a positive electrode, a negative electrode, a separator arranged between the positive electrode and the negative electrode, and a liquid electrolyte composed of a solvent and at least one lithium electrolyte salt comprising lithium perchlorate (LiClO 4 ) present in the electrolyte in a concentration of 5% by weight to 17% by weight, and with which the electrode and the separator are impregnated, wherein the solvent comprises 30-60% by volume propylene carbonate (PC) as a first solvent component and 40-70% by volume 1,3-dioxolane (DOL) as a second solvent component, and the positive electrode and/or the negative electrode have a proportion of carbon black 1) having a BET surface area of 1 m 2 /g to 30 m 2 /g and 2) of 2 to 10% by weight, based on the dry weight of solid constituents of the positive and/or negative electrode. 2. The battery according to claim 1 , wherein the positive electrode comprises manganese dioxide as an active material, and the negative electrode comprises metallic lithium as an active material. 3. A DME-free lithium battery comprising: a positive electrode, a negative electrode, a separator arranged between the positive electrode and the negative electrode, and a liquid electrolyte composed of a solvent and at least one lithium electrolyte salt comprising lithium perchlorate (LiClO 4 ) present in the electrolyte in a concentration of 5% by weight to 17% by weight, and with which the electrode and the separator are impregnated, wherein the solvent comprises 10-60% by volume propylene carbonate (PC) as a first solvent component, 50-70% by volume 1,3-dioxolane (DOL) as a second solvent component, and 0-50% by volume ethylene carbonate (EC) as a third solvent component, and the positive electrode and/or the negative electrode have a proportion of carbon black 1) having a BET surface area of 1 m 2 /g to 30 m 2 /g and 2) of 2 to 10% by weight, based on the dry weight of solid constituents of the positive and/or negative electrode. 4. The battery according to claim 3 , wherein the positive electrode comprises manganese dioxide as an active material, and the negative electrode comprises metallic lithium as an active material.

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What does patent US10003086B2 cover?
A DME-free lithium battery includes a positive electrode, a negative electrode, a separator arranged between the positive electrode and the negative electrode, and a liquid electrolyte composed of a solvent and at least one lithium electrolyte salt and with which the electrode and the separator are impregnated, wherein the solvent includes propylene carbonate (PC) as a first solvent component a…
Who is the assignee on this patent?
Varta Microbattery Gmbh
What technology area does this patent fall under?
Primary CPC classification H01M6/164. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jun 19 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).