PESL-115US
`
`What is Claimed:
`
`-19-
`
`1.
`
`A lithium secondary battery comprising:
`
`a negative electrode;
`
`a positive electrode comprising a current collector, an active cathode
`
`material comprising a lithium transition metal complex oxide coated on the current
`
`collector, and Si1_XGeXOY (where OSXS 1, OSY<2); and
`
`an electrolyte comprising at least one lithium salt and at least one
`
`solvent.
`
`2.
`
`A lithium secondary battery according to claim 1, wherein the
`
`positive electrode comprises SiOX which is formed by one of SiOX mixed with the
`
`lithium transition metal complex oxide to form the active cathode material, a coating
`
`of the SiOX is deposited on the surface of the active cathode material, and a coating
`
`of the SiOX is deposited on the surface of the current collector.
`
`3.
`
`A lithium secondary battery according to claim 1, wherein the
`
`Si1_XGeXOY (OSXS 1, OSY<2) is deposited on the surface of the active cathode
`
`material coated on the current collector.
`
`4.
`
`A lithium secondary battery according to claim 1, wherein the
`
`lithium transition metal complex oxide is selected from the group consisting of
`
`lithium cobalt oxide (LiCoOZ), lithium nickel oxide (LiNiOZ), lithium manganese oxide
`
`(Li(Mn2_XAX)O4 where A is a transition metal, OSX<2), lithium iron phosphate
`
`(LiFePO4), lithium nickel manganese cobalt oxide (LiNiXMnyCoZOZ, x+y+z=1), and
`
`lithium nickel cobalt aluminum oxide (LiNiXCoyAIZOZ, x+y+z=1).
`
`5.
`
`A lithium secondary battery according to claim 1, wherein the
`
`lithium transition metal complex oxide is LiCoOz.
`
`6.
`
`A lithium secondary battery according to claim 1, wherein the
`
`negative electrode comprises a graphite and/or lithium alloy comprising a metal
`
`selected from the group consisting of Si, Sn, Al, Pb, Bi, In, Ag, Pt, and Ti.
`
`
`
`What is Claimed:
`
`-19-
`
`1.
`
`A lithium secondary battery comprising:
`
`a negative electrode;
`
`a positive electrode comprising a current collector, an active cathode
`
`material comprising a lithium transition metal complex oxide coated on the current
`
`collector, and Si1_XGeXOY (where OSXS 1, OSY<2); and
`
`an electrolyte comprising at least one lithium salt and at least one
`
`solvent.
`
`2.
`
`A lithium secondary battery according to claim 1, wherein the
`
`positive electrode comprises SiOX which is formed by one of SiOX mixed with the
`
`lithium transition metal complex oxide to form the active cathode material, a coating
`
`of the SiOX is deposited on the surface of the active cathode material, and a coating
`
`of the SiOX is deposited on the surface of the current collector.
`
`3.
`
`A lithium secondary battery according to claim 1, wherein the
`
`Si1_XGeXOY (OSXS 1, OSY<2) is deposited on the surface of the active cathode
`
`material coated on the current collector.
`
`4.
`
`A lithium secondary battery according to claim 1, wherein the
`
`lithium transition metal complex oxide is selected from the group consisting of
`
`lithium cobalt oxide (LiCoOZ), lithium nickel oxide (LiNiOZ), lithium manganese oxide
`
`(Li(Mn2_XAX)O4 where A is a transition metal, OSX<2), lithium iron phosphate
`
`(LiFePO4), lithium nickel manganese cobalt oxide (LiNiXMnyCoZOZ, x+y+z=1), and
`
`lithium nickel cobalt aluminum oxide (LiNiXCoyAIZOZ, x+y+z=1).
`
`5.
`
`A lithium secondary battery according to claim 1, wherein the
`
`lithium transition metal complex oxide is LiCoOz.
`
`6.
`
`A lithium secondary battery according to claim 1, wherein the
`
`negative electrode comprises a graphite and/or lithium alloy comprising a metal
`
`selected from the group consisting of Si, Sn, Al, Pb, Bi, In, Ag, Pt, and Ti.
`
`
`
`PESL-115US
`
`-20-
`
`7.
`
`A lithium secondary battery according to claim 1, wherein the at
`
`least one lithium salt is selected from the group consisting of LiPF6, LiAsF6, LiBF4, and
`
`LiClO4.
`
`8.
`
`A lithium secondary battery according to claim 1, wherein the at
`
`least one solvent is selected from the group consisting of ethylene carbonate,
`
`propylene carbonate, butylene carbonate, ethyl methyl carbonate, dimethyl
`
`carbonate, diethyl carbonate, and mixtures thereof.
`
`9.
`
`A lithium secondary battery according to claim 1, wherein the at
`
`least one solvent comprises a mixture of ethylene carbonate and ethyl methyl
`
`carbonate.
`
`10.
`
`A lithium secondary battery according to claim 1, wherein the
`
`positive electrode comprising Si1_XGeXOY (OSXS 1, OSY<2) generates less heat
`
`relative to a positive electrode without Si1_XGeXOY (OSXS 1, OSY<2) throughout a
`
`state of overcharge.
`
`11.
`
`A positive electrode for a non-aqueous electrolyte secondary
`
`battery comprising:
`
`a current collector and an active cathode material comprising LiCoOz
`
`coated on the current collector, and
`
`a coating of Si1_XGeXOY (OSXS 1, OSY<2) coated on one of the current
`
`collector and the active cathode material,
`
`wherein the positive electrode comprising Si1_XGeXOY (OSXS 1, OSY<2)
`
`generates less heat relative to a positive electrode without a coating of Si1_XGeXOY
`
`(OSXS 1, OSY<2) throughout a state of overcharge.
`
`12.
`
`A positive electrode according to claim 11, wherein the coating
`
`of Si1_XGeXOY (OSXS 1, OSY<2) has a thickness which is less than about 100 nm.
`
`13.
`
`A positive electrode according to claim 11, wherein the heat
`
`generation throughout the state of overcharge of the positive electrode comprising
`
`
`
`PESL-115US
`
`-21-
`
`Si1_XGeXOY (OSXS 1, OSY<2) is up to 50% less relative to the positive electrode
`
`WIthOUt Si1_XGeXOY (OSXS 1, OSY<2).
`
`14.
`
`A lithium secondary battery comprising:
`
`a cathode comprising Si1_XGeXOY (where OSXS 1, OSY<2) and a cathode
`
`active material comprising a lithium transition metal complex oxide selected from the
`
`group consisting of lithium cobalt oxide (LiCoOZ), lithium nickel oxide (LiNiOZ),
`
`lithium manganese oxide (LiMnZO4), lithium iron phosphate (LiFePO4), lithium nickel
`
`manganese cobalt oxide (LiNiXMnyCoZOZ, x+y+z=1), lithium nickel cobalt aluminum
`
`oxide (LiNiXCoyAIZOZ x+y+z=1), and Li(Mn2_XAX)O4 (where A is a transition metal and
`
`OSx<2x
`
`an anode comprising a graphite and/or lithium alloy comprising a metal
`
`selected from the group consisting of Si, Sn, Al, Pb, Bi, In, Ag, Pt, and Ti; and
`
`an electrolyte comprising at least one lithium salt selected from the
`
`group consisting of LiPF6, LiAsF6, LiBF4, and LiClO4 and at least one solvent selected
`
`from the group consisting of ethylene carbonate, propylene carbonate, butylene
`
`carbonate, ethyl methyl carbonate, dimethyl carbonate, diethyl carbonate, and
`
`mixtures thereof;
`
`wherein the cathode comprising Si1_XGeXOY (OSXS 1, OSY<2) generates
`
`less heat relative to a cathode without Si1_XGeXOY (OSXS 1, OSY<2) throughout a
`
`state of overcharge.
`
`15.
`
`A method of preparing a positive electrode for a lithium
`
`secondary battery comprising:
`
`coating a current collector with an active cathode material comprising
`
`LICOOz,
`
`electrode;
`
`OSY<2M
`
`drying and calendaring the coated current collector to form the positive
`
`preparing and calcinating a mixture comprising Si1_XGeXOY (OSXS 1,
`
`
`
`PESL-115US
`
`-22-
`
`depositing the calcinated mixture comprising Si1_XGeXOY (OSXS 1,
`
`OSY<2) onto the positive electrode by vapor deposition to form a coating of Si1_
`
`)(Gexoy (OSXS 1, OSY<2).
`
`16.
`
`A method of preparing a positive electrode according to claim
`
`15, wherein the coating of Si1_XGeXOY (OSXS 1, OSY<2) is about 12 nm to about 80
`
`nm in thickness.
`
`17.
`
`A method of using a lithium secondary battery comprising:
`
`overcharging a lithium secondary battery comprising a negative
`
`electrode, a positive electrode comprising Si1_XGeXOY (OSXS 1, OSY<2) and an active
`
`cathode material comprising a lithium transition metal complex oxide, and an
`
`electrolyte comprising at least one lithium salt and at least one solvent,
`
`wherein the heat generation of the positive electrode comprising Si1_
`
`XGeXOY (OSXS 1, OSY<2) is maintained at levels lower relative to a positive electrode
`
`without Si1_XGeXOY (OSXS 1, OSY<2) during the overcharge.
`
`18.
`
`A method of using a lithium secondary battery according to
`
`claim 17, wherein during the overcharge the positive electrode comprising Si1_XGeXOY
`
`(OSXS 1, OSY<2) generates oxygen and SiOX oxidizes to become silicon dioxide.
`
`19.
`
`A method of using a lithium secondary battery according to
`
`claim 17, wherein the heat generation during the overcharge of the positive electrode
`
`comprising Si1_XGeXOY (OSXS 1, OSY<2) is up to 50% less relative to the positive
`
`electrode without Si1_XGeXOY (OSXS 1, OSY<2).
`
`20.
`
`A method of using a lithium secondary battery according to
`
`claim 17, wherein the lithium secondary battery does not rupture during the
`
`overcharge.
`
`
Accessing this document will incur an additional charge of $.
After purchase, you can access this document again without charge.
Accept $ Charge
Still Working On It
This document is taking longer than usual to download. This can happen if we need to contact the court directly to obtain the document and their servers are running slowly.
Give it another minute or two to complete, and then try the refresh button.
A few More Minutes ... Still Working
It can take up to 5 minutes for us to download a document if the court servers are running slowly.
Thank you for your continued patience.
This document could not be displayed.
We could not find this document within its docket. Please go back to the docket page and check the link. If that does not work, go back to the docket and refresh it to pull the newest information.
Your account does not support viewing this document.
You need a Paid Account to view this document. Click here to change your account type.
Your account does not support viewing this document.
Set your membership
status to view this document.
With a Docket Alarm membership, you'll
get a whole lot more, including:
- Up-to-date information for this case.
- Email alerts whenever there is an update.
- Full text search for other cases.
- Get email alerts whenever a new case matches your search.
One Moment Please
The filing “” is large (MB) and is being downloaded.
Please refresh this page in a few minutes to see if the filing has been downloaded. The filing will also be emailed to you when the download completes.
Your document is on its way!
If you do not receive the document in five minutes, contact support at support@docketalarm.com.
Sealed Document
We are unable to display this document, it may be under a court ordered seal.
If you have proper credentials to access the file, you may proceed directly to the court's system using your government issued username and password.
Access Government Site
