Liquid Electrolyte Composition, and Electrochemical Cell Comprising Said Electrolyte Composition
US-2024347772-A1 · Oct 17, 2024 · US
Stabilization of li-ion battery anodes
US2018034099A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018034099-A1 |
| Application number | US-201715728458-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 9, 2017 |
| Priority date | Feb 7, 2011 |
| Publication date | Feb 1, 2018 |
| Grant date | — |
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- Title
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Abstract
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Li-ion batteries are provided that include a cathode, an anode comprising active particles, an electrolyte ionically coupling the anode and the cathode, a separator electrically separating the anode and the cathode, and at least one hydrofluoric acid neutralizing agent incorporated into the anode or the separator. Li-ion batteries are also provided that include a cathode, an anode comprising active particles, an electrolyte ionically coupling the anode and the cathode, and a separator electrically separating the anode and the cathode, where the electrolyte may be formed from a mixture of an imide salt and at least one salt selected from the group consisting of LiPF 6 , LiBF 4 , and LiClO 4 . Li-ion battery anodes are also provided that include an active material core and a protective coating at least partially encasing the active material core, where the protective coating comprises a material that is resistant to hydrofluoric acid permeation.
First claim
Opening claim text (preview).
1 . A Li-ion battery, comprising: a cathode; an anode comprising active particles that comprise at least one of silicon (Si), germanium (Ge), tin (Sn), titanium (Ti), aluminum (Al), or magnesium (Mg); an electrolyte ionically coupling the anode and the cathode; a separator electrically separating the anode and the cathode; and at least one hydrofluoric acid neutralizing agent incorporated into the anode, wherein the hydrofluoric acid neutralizing agent is part of a polymer coating on each of the active particles in the anode, and wherein the hydrofluoric acid neutralizing agent comprises: a hydrofluoric acid binding metal derivative salt, a hydrofluoric acid binding metal derivative oxide comprising Ca or Cu, or a Lewis base having a free pair of electrons. 2 - 4 . (canceled) 5 . The Li-ion battery of claim 1 , wherein the hydrofluoric acid neutralizing agent comprises the hydrofluoric acid binding metal derivative salt. 6 . The Li-ion battery of claim 1 , wherein the hydrofluoric acid neutralizing agent comprises the hydrofluoric acid binding metal derivative oxide comprising Ca or Cu. 7 . The Li-ion battery of claim 1 , wherein the hydrofluoric acid neutralizing agent comprises the Lewis base having a free pair of electrons.
Assignees
Inventors
Classifications
Tin or alloys based on tin · CPC title
Aluminium based · CPC title
Safety or regulating additives or arrangements in electrodes, separators or electrolyte (H01M10/4242 takes precedence) · CPC title
of elements or alloys · CPC title
Silicon or alloys based on silicon · CPC title
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- What does patent US2018034099A1 cover?
- Li-ion batteries are provided that include a cathode, an anode comprising active particles, an electrolyte ionically coupling the anode and the cathode, a separator electrically separating the anode and the cathode, and at least one hydrofluoric acid neutralizing agent incorporated into the anode or the separator. Li-ion batteries are also provided that include a cathode, an anode comprising ac…
- Who is the assignee on this patent?
- Sila Nanotechnologies Inc, Georgia Tech Res Inst
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0525. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Feb 01 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).