High voltage, high volumetric energy density li-ion battery using advanced cathode materials
The disclosed embodiments provide a battery cell. The battery cell includes an anode containing an anode current collector and an anode active material disposed over the anode current collector. The battery cell also includes a cathode containing a cathode current collector and a cathode active material disposed over the cathode current collector. The cathode active material has a composition represented by xLi 2 MO 3 ·(1- x )LiCo y M′ (1-y) O 2 .
1. A cathode active material composition having a composition represented by xLi 2 MO 3 ·(1-x)LiCo y M′ (1-y) O 2 ;
wherein 0.01≤x<0.30;
wherein M is manganese;
wherein 0.8≤y<1.00;
wherein M′ is Al.
2. A cathode for a battery cell, comprising:
a cathode current collector;
a cathode active material disposed over the cathode current collector, having a composition represented by xLi 2 MO 3 ·(1-x)LiCo y M′ (1-y) O 2 ;
wherein 0.01≤x<0.30;
wherein M is manganese;
wherein 0.8≤y<1.00;
wherein M′ is Al.
3. A battery cell, comprising:
an anode, comprising:
an anode current collector; and
an anode active material disposed over the anode current collector; and
a cathode, comprising:
a cathode current collector;
a cathode active material disposed over the cathode current collector, having a composition represented by xLi 2 MO 3 ·(1-x)LiCo y M′ (1-y) O 2 ;
wherein 0.01≤x<0.30;
wherein M is manganese;
wherein 0.8≤y<1.00;
wherein M′ is Al.
4. The battery cell of claim 3 , wherein the composition is formed using at least one of:
a mixed-metal hydrated hydroxide precursor made using a solution co-precipitation method; and
a lithium addition solid-state reaction.
5. The battery cell of claim 3 , wherein the cathode has an amount of lithium that can be reversibly extracted from the cathode active material greater than 60%, and a reversible capacity greater than 165 mAh/g.
6. The battery cell of claim 3 , wherein the cathode has an amount of lithium that can be reversibly extracted from the cathode active material greater than 75%, and a reversible capacity greater than 200 mAh/g.
7. A portable electronic device, comprising:
a set of components powered by a battery pack; and
the battery pack, comprising:
a battery cell, comprising:
an anode, comprising:
an anode current collector; and
an anode active material disposed over the anode current collector; and
a cathode, comprising:
cathode current collector;
a cathode active material disposed over the cathode current collector, comprising a composition represented by xLi 2 MO 3 ·(1-x)LiCo y M′ (1-y) O 2 ;
wherein 0.01≤x<0.30;
wherein M is manganese;
wherein 0.8≤y<1.00;
wherein M′ is Al.