Positive active material, preparing method thereof, positive electrode for lithium secondary battery including the same, and lithium secondary battery employing the same
US-2015243971-A1 · Aug 27, 2015 · US
High-density precursor for manufacture of composite metal oxide cathodes for Li-ion batteries
US9716265B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9716265-B2 |
| Application number | US-201414449987-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 1, 2014 |
| Priority date | Aug 1, 2014 |
| Publication date | Jul 25, 2017 |
| Grant date | Jul 25, 2017 |
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- Title
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Abstract
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The disclosed embodiments relate to the manufacture of a precursor co-precipitate material for a cathode active material composition. During manufacture of the precursor co-precipitate material, an aqueous solution containing at least one of a manganese sulfate and a cobalt sulfate is formed. Next, a NH 4 OH solution is added to the aqueous solution to form a particulate solution comprising irregular secondary particles of the precursor co-precipitate material. A constant pH in the range of 10-12 is also maintained in the particulate solution by adding a basic solution to the particulate solution.
First claim
Opening claim text (preview).
What is claimed is: 1. A compound having a composition represented by Mn x M y Co z (OH) 2 wherein x=0.04, y=0, z=0.96; and wherein M comprises one or more metal cations selected from the group consisting of monovalent, divalent, trivalent or tetravalent cations and Ru. 2. A compound having a composition represented by Mn x M y Co z (OH) 2 wherein x=0.04, y=0.02, z=0.94 and M is Ni. 3. A compound having a composition represented by Mn x M y Co z (OH) 2 wherein x=0.04, y=0.02, z=0.94 and M is Mg. 4. A compound having a composition represented by Mn x M y Co z (OH) 2 wherein x=0.02, y =0.01, z =0.97 and M is Ni. 5. A compound having a composition represented by Mn x ,M y Co z (OH) 2 wherein x=0.04, y=0.001, z =0.95 and M is Mg.
Assignees
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Classifications
Compounds of nickel · CPC title
Particles with a specific particle size distribution · CPC title
Spheres · CPC title
Surface area · CPC title
of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title
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- What does patent US9716265B2 cover?
- The disclosed embodiments relate to the manufacture of a precursor co-precipitate material for a cathode active material composition. During manufacture of the precursor co-precipitate material, an aqueous solution containing at least one of a manganese sulfate and a cobalt sulfate is formed. Next, a NH 4 OH solution is added to the aqueous solution to form a particulate solution comprising irr…
- Who is the assignee on this patent?
- Apple Inc
- What technology area does this patent fall under?
- Primary CPC classification H01M4/364. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 25 2017 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).