Application No.: 16/580,195
`
`Docket No.: P190960US00
`
`AMENDMENTS TO THE CLAIMS
`
`This listing of claims replaces all prior versions of claims in the application.
`
`Listing of Claims:
`
`1.
`
`(Currently Amended) A secondary battery, comprising:
`
`a positive electrode;
`
`a negative electrode; and
`
`an electrolyte, wherein
`
`the positive electrode includes a positive electrode current collector, an intermediate layer
`
`formed on the positive electrode current collector, and a positive electrode mixture layer formed
`
`on the intermediate layer;
`
`the positive electrode mixture layer includes a positive electrode active material and 0.1
`
`mass% or more and less than 5 mass% of a thermally expandable material, wherein the positive
`
`electrode active material is one selected from the group consisting of LixCoOz, LixNiO2, LixMnO2,
`
`LixCoyNi1-yO2, LixCoyMi-yOz, LixNi1-yMyOz, LixMn2O4, LixMn2-yMyO4, LiMPOs, Li2MPOaF (M:
`
`at least one of Na, Mg, Sc, Y, Mn, Fe, Co, Ni, Cu, Zn, Al, Cr, Pb, Sb, and B, 0<x<1.2, 0<y<0.9,
`
`and 2.0<z<2.3), and combinationsthereof,
`
`the intermediate layer includes a conductive agent and 80 mass% or more and 99 mass%
`
`or less of an insulating inorganic material; and
`
`
`
`the thermally expandable material includes atleastene-ofexpandedcraphiteandafeamine
`
`
`
`
`
`agent expandable graphite treated with at least one of the group consisting of concentrated sulfuric
`
`acid, nitric acid and selenic acid, and at least one of the group consisting of concentrated nitric
`
`acid, perchlorate, permanganate and dichromate so as to form crystalline compounds having a
`
`graphitic layer structure which when a predetermined temperature is reached are volumetrically
`
`2
`
`
`
`Docket No.: P190960US00
`
`AMENDMENTS TO THE CLAIMS
`
`This listing of claims replaces all prior versions of claims in the application.
`
`Listing of Claims:
`
`1.
`
`(Currently Amended) A secondary battery, comprising:
`
`a positive electrode;
`
`a negative electrode; and
`
`an electrolyte, wherein
`
`the positive electrode includes a positive electrode current collector, an intermediate layer
`
`formed on the positive electrode current collector, and a positive electrode mixture layer formed
`
`on the intermediate layer;
`
`the positive electrode mixture layer includes a positive electrode active material and 0.1
`
`mass% or more and less than 5 mass% of a thermally expandable material, wherein the positive
`
`electrode active material is one selected from the group consisting of LixCoOz, LixNiO2, LixMnO2,
`
`LixCoyNi1-yO2, LixCoyMi-yOz, LixNi1-yMyOz, LixMn2O4, LixMn2-yMyO4, LiMPOs, Li2MPOaF (M:
`
`at least one of Na, Mg, Sc, Y, Mn, Fe, Co, Ni, Cu, Zn, Al, Cr, Pb, Sb, and B, 0<x<1.2, 0<y<0.9,
`
`and 2.0<z<2.3), and combinationsthereof,
`
`the intermediate layer includes a conductive agent and 80 mass% or more and 99 mass%
`
`or less of an insulating inorganic material; and
`
`
`
`the thermally expandable material includes atleastene-ofexpandedcraphiteandafeamine
`
`
`
`
`
`agent expandable graphite treated with at least one of the group consisting of concentrated sulfuric
`
`acid, nitric acid and selenic acid, and at least one of the group consisting of concentrated nitric
`
`acid, perchlorate, permanganate and dichromate so as to form crystalline compounds having a
`
`graphitic layer structure which when a predetermined temperature is reached are volumetrically
`
`2
`
`
`
`Application No.: 16/580,195
`
`Docket No.: P190960US00
`
`expandedby a gas generated by heat to form a nonflammable carbonizedlayer,
`
`wherein the positive electrode mixture layer further includes a conductive material, and the
`
`thermally expandable material has larger volume expansion due to heat than the conductive
`
`material.
`
`2.
`
`(Currently Amended) A secondary battery, comprising:
`
`a positive electrode;
`
`a negative electrode; and
`
`an electrolyte, wherein
`
`the positive electrode includes a positive electrode current collector, an intermediate layer
`
`formed on the positive electrode current collector, and a positive electrode mixture layer formed
`
`on the intermediate layer;
`
`the positive electrode mixture layer includes a positive electrode active material;
`
`the intermediate layer includes 0.1 mass% or more andless than 5 mass% of a thermally
`
`expandable material and 80 mass% or more and 99 mass% or less of an insulating inorganic
`
`material; and
`
`
`
`the thermally expandable material includes atleastene-ofexpandedcraphiteandafeamine
`
`
`
`
`
`agent expandable graphite treated with at least one of the group consisting of concentrated sulfuric
`
`acid, nitric acid and selenic acid, and at least one of the group consisting of concentrated nitric
`
`acid, perchlorate, permanganate and dichromate so as to form crystalline compounds having a
`
`graphitic layer structure which when a predetermined temperature is reached are volumetrically
`
`expanded by a gas generated by heat to form a nonflammable carbonizedlayer,
`
`wherein the intermediate layer further includes a conductive agent, and the thermally
`
`
`
`Application No.: 16/580,195
`
`Docket No.: P190960US00
`
`expandable material has larger volume expansion dueto heat than the conductive agent.
`
`3.
`
`4.
`
`(Canceled)
`
`(Original) The secondary battery according to claim 1, wherein a thickness of the
`
`intermediate layer is 1 wm or more and 5 um orless.
`
`5.
`
`(Original) The secondary battery according to claim 2, wherein a thickness of the
`
`intermediate layer is 1 um or more and 5 um orless.
`
`6.
`
`(Original) The secondary battery according to claim 1, wherein the insulating inorganic
`
`material includes at least one of aluminum oxide, titanium oxide, zirconium oxide, silicon oxide,
`
`manganese oxide, magnesium oxide, nickel oxide, boron nitride, aluminum nitride, magnesium
`
`nitride, silicon nitride, aluminum fluoride, lithium fluoride, sodium fluoride, magnesium fluoride,
`
`calcium fluoride, barium fluoride, aluminum hydroxide, and boehmite.
`
`7.
`
`(Original) The secondary battery according to claim 2, wherein the insulating inorganic
`
`material includes at least one of aluminum oxide, titanium oxide, zirconium oxide, silicon oxide,
`
`manganese oxide, magnesium oxide, nickel oxide, boron nitride, aluminum nitride, magnesium
`
`nitride, silicon nitride, aluminum fluoride, lithium fluoride, sodium fluoride, magnesium fluoride,
`
`calcium fluoride, barium fluoride, aluminum hydroxide, and boehmite.
`
`8.
`
`(Original) The secondary battery according to claim 1, wherein a content of the thermally
`
`
`
`Application No.: 16/580,195
`
`Docket No.: P190960US00
`
`expandable material in the positive electrode mixture layer is 0.1 mass% or more and 1 mass% or
`
`less.
`
`9.
`
`(Original) The secondary battery according to claim 2, wherein a content of the thermally
`
`expandable material in the intermediate layer is 0.1 mass% or more and 1 mass% orless.
`
`10. (Previously Presented) The secondary battery according to claim 1, wherein an averageparticle
`
`size of the expanded graphite is 1 to 500 um, and the expansion volume of the expanded graphite
`
`is 10 to 300 mL/g.
`
`11. (Currently Amended) The secondary battery accordingto claim 1,
`
`
`
`wherein the conductive material
`
`includes a carbon material selected from the group
`
`consisting of carbon black (CB), acetylene black (AB), ketjen black, graphite, and combinations
`
`thereof.
`
`12. (Previously Presented) The secondary battery according to claim 2, wherein an averageparticle
`
`size of the expanded graphite is 1 to 500 um, and the expansion volume of the expanded graphite
`
`is 10 to 300 mL/g.
`
`
`
`Application No.: 16/580,195
`
`Docket No.: P190960US00
`
`13. (Currently Amended) The secondary battery accordingto claim 2,
`
`
`
`wherein the conductive agent includes a carbon material selected from the group consisting
`
`of carbon black (CB), acetylene black (AB), ketjen black, graphite, and combinationsthereof.
`
`
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