Graphene foam-protected anode active materials for lithium batteries
US-2016043384-A1 · Feb 11, 2016 · US
Anode for secondary battery and secondary battery including the same
US2018287136A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018287136-A1 |
| Application number | US-201615572377-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 25, 2016 |
| Priority date | Aug 25, 2015 |
| Publication date | Oct 4, 2018 |
| Grant date | — |
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Abstract
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The present disclosure relates to an anode for a secondary battery in which Sn metal powder particles function as a conductive material in combination with a carbonaceous conductive material, and a secondary battery including the anode and having improved electroconductivity. The secondary battery including the anode has improved electroconductivity and reduced resistance, and thus can show excellent output performance.
First claim
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1 . An anode for a secondary battery which comprises an anode current collector and a carbonaceous anode active material layer formed on at least one surface of the anode current collector, wherein Sn metal powder particles functions as a conductive material in combination with a carbonaceous conductive material. 2 . The anode for a secondary battery according to claim 1 , wherein the Sn metal powder particles are bound to the carbonaceous anode active material through a binder polymer. 3 . The anode for a secondary battery according to claim 1 , wherein the Sn metal powder particles and the carbonaceous conductive material are used at a ratio of 1:1-5:1 on the weight basis. 4 . The anode for a secondary battery according to claim 1 , wherein the Sn metal powder particle are present in an amount of 1-5 wt % based on 100 wt % of the anode active material. 5 . The anode for a secondary battery according to claim 1 , wherein the Sn metal powder particles have a particle diameter corresponding to 10% or less of the diameter of the active material particles. 6 . The anode for a secondary battery according to claim 1 , wherein the Sn metal has an average diameter of 0.01-1 μm. 7 . The anode for a secondary battery according to claim 1 , wherein the carbonaceous conductive material is carbon black primary particles having a spherical shape with an average particle diameter of 10-50 nm. 8 . The anode for a secondary battery according to claim 1 , wherein the carbonaceous conductive material is fibrous graphite capable of point contact with at least two active materials that are not adjacent to each other. 9 . The anode for a secondary battery according to claim 2 , wherein the binder polymer is a binder polymer used as a dispersion in water. 10 . The anode for a secondary battery according to claim 2 , wherein the binder polymer is styrene-butadiene rubber (SBR). 11 . The anode for a secondary battery according to claim 1 , wherein the Sn metal powder particles are derived from SnO 2 . 12 . A secondary battery comprising an anode, a cathode, a separator interposed between the anode and the cathode and an electrolyte, wherein the anode is the anode as defined in claim 1 and the electrolyte contains a lithium salt.
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- What does patent US2018287136A1 cover?
- The present disclosure relates to an anode for a secondary battery in which Sn metal powder particles function as a conductive material in combination with a carbonaceous conductive material, and a secondary battery including the anode and having improved electroconductivity. The secondary battery including the anode has improved electroconductivity and reduced resistance, and thus can show exc…
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/133. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Oct 04 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).