Cathode active materials having improved particle morphologies
Mixed-metal oxides and lithiated mixed-metal oxides are disclosed that involve compounds according to, respectively, Ni x Mn y Co z Me α O β and Li 1+γ Ni x Mn y Co z Me α O β . In these compounds, Me is selected from B, Na, Mg, Al, Si, K, Ca, Sc, Ti, V, Cr, Fe, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ru, Ag, In, and combinations thereof; 0≤x≤1; 0≤y≤1; 0≤z<1; x+y+z>0; 0≤α≤0.5; and x+y+α>0. For the mixed-metal oxides, 1≤β≤5. For the lithiated mixed-metal oxides, −0.1≤γ≤1.0 and 1.9≤β≤3. The mixed-metal oxides and the lithiated mixed-metal oxides include particles having an average density greater than or equal to 90% of an ideal crystalline density.
1. Particles comprising a compound selected from the group consisting of Formula (Ib), Formula (IIb), Formula (IIIc), Formula (IVb), Formula (Vb), Formula (Vc), Formula (Ve), Formula (Vg), Formula (Vh), Formula (VIb), Formula (VIIb), Formula (VIIc), and Formula (VIIIb);
wherein the particles have an average density greater than or equal to 90% of an ideal crystalline density of the particle; and
wherein:
Formula (Ib) is
Li 1+γ Ni x Mn y Co z Me α O β (Ib)
wherein
M 1 is selected from B, Na, Mg, Al, Si, K, Ca, Sc, Ti, V, Cr, Fe, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ru, Ag, In, and combinations therof,
−0.1≤f≤1.0,
0≤a≤1,
0≤b≤1,
0≤c<1,
a+b+c>0,
0≤d≤0.5,
a+b+d>0, and
1.9≤e≤3;
Formula (IIb) is
Li h M 2 O g (IIb)
wherein
M 2 =Co, Mn, Ni, and any combination thereof,
0.95≤h≤2, and 2≤g≤3;
Formula (IIIb) is
(i)[Li 2 M 3 O 3 ]·(1−i)[LiM 4 O 2 ] (IIIb)
wherein
M 3 is one or more cations with an average oxidation state of 4+,
M 4 is one or more cations with an average oxidation state of 3+, and
0≤i≤1;
Formula (IIIc) is
(i)[Li 2 M 3 O 3 ]·(1−i)[Li 1−k M 4 O 2 ] (IIIc)
wherein
M 3 is one or more cations with an average oxidation state of 4+,
M 4 is one or more cations,
0≤i≤1, and
0≤k≤1;
Formula (IVb) is
Li o Co 1−l M 5 l Al m O n (IVb)
wherein
M 5 is at least one element selected from the group consisting of B, Na, Mn, Ni, Mg, Ti, Ca, V, Cr, Fe, Cu, Zn, Al, Sc, Y, Ga, Zr, Mo, Ru, and any combination thereof,
0.95≤o≤1.10,
0<l<0.50,
0<m≤0.05, and
1.95≤n≤2.60;
Formula (Vb) is
Li s Co 1−p Mn p O r (Vb)
wherein
0.95≤s≤1.10,
0≤p≤0.10, and
1.90≤r≤2.20;
Formula (Vc) is
(p)[Li 2 MnO 3 ]·(1−p)[LiCoO 2 ] (Vc)
wherein 0≤p≤0.10;
Formula (Ve) is
(t)[Li 2 MnO 3 ]·(1−t)[Li (1−u) Co (1−u) Mn u O 2 ] (Ve)
wherein
0<t≤0.30; and
0≤u≤0.10;
Formula (Vg)
Li s Co 1−p−q Mn p M 6 q O r (Vg)
wherein
M 6 is at least one element selected from the group consisting of of B, Na, Mg, Ti, Ca, V, Cr, Fe, Co, Ni, Cu, Zn, Al, Sc, Y, Ga, Zr, Ru, and Mo,
0.95≤s≤1.30,
0<p≤0.30,
0≤q≤0.10, and
1.98≤r≤2.04;
Formula (Vh) is
Li s Co 1−p−q Mn p Al q O r (Vh)
wherein
0.95≤s≤1.30,
0<p≤0.30,
0≤q≤0.10, and
1.98≤r≤2.04;
Formula (VIb) is
(v)[Li 2 M 7 O 3 ]·(1−v)[Li α Co 1−σ M 8 σ O 2 ] (VIb)
wherein
M 7 is one or more cations with an average oxidation state of 4+,
M 8 is one or more monovalent, divalent, trivalent, and tetravalent cations,
0.01≤v<1.00, and
0.5≤w≤1;
Formula (VIIb) is
Li β Ni x M 9 y M 10 z O 2 (VIIb)
wherein
M 9 is selected from Mn, Ti, Zr, Ge, Sn, Te, and a combination thereof;
M 10 is selected from Mg, Be, Ca, Sr, Ba, Fe, Ni, Cu, Zn, and a combination thereof;
0.9<β<1.1,
0.7<x<1,
0<y<0.3,
0<z<0.3, and
x+y+z=1;
Formula (VIIc) is
Li β Ni x Mn y Mg z O 2 (VIIc)
wherein
0.9<β<1.1,
0.7<x<1,
0<y<0.3,
0<z<0.3, and
x+y+z=1; and
Formula (VIIIb) is
γLi 2 M 11 O 3 ·(1−γ)Li θ Ni δ M 12 ε M 13 ζ O 2 (VIIIb)
wherein
0≤γ≤0.3
M 11 is selected from Mn, Ti, Ru, Zr, and any combination thereof,
M 12 is selected from Mn, Ti, Zr, Ge, Sn, Te, and any combination thereof,
M 13 is selected from Mg, Be, Ca, Sr, Ba, Fe, Ni, Cu, Zn, and any combination thereof,
0.9<θ<1.1,
0.7<ε<0.3,
0<ζ<0.3, and
δ+ε+ζ=1.
2. The particles of claim 1 , wherein the particles comprise crystallites.
3. The particles of claim 1 , wherein the crystallites are greater in number than 50% of the particles.
4. The particles of claim 1 , wherein a first portion of the particles has a mean particle size between 1 and 50 μm.
5. The particles of claim 4 , wherein the first portion of the particles has a mean particle size of between 10 and 20 μm.
6. The particles of claim 4 , wherein a second portion of particles has a mean particle size of between 1 and 5 μm.
7. The particles of claim 4 , wherein the first portion of the particles has a mean particle size between 10 and 20 μm, and the second portion of the particles has a mean particle size of between 1 and 5 μm.
8. A cathode comprising a cathode current collector and a cathode active material disposed over the cathode current collector, the cathode active material comprising the composition of claim 1 .
9. A battery cell, comprising:
an anode comprising an anode current collector and an anode active material disposed over the anode current collector; and
the cathode of claim 8 .
10. A portable electronic device comprising:
a set of components powered by the battery cell of claim 9 .
11. The particles according to claim 1 , wherein the compound is of Formula (Ib).
12. The particles according to claim 1 , wherein the compound is of Formula (IIb).
13. The particles according to claim 1 , wherein the compound is of Formula (IIIc).
14. The particles according to claim 1 , wherein the compound is of Formula (IVb).
15. The particles according to claim 1 , wherein the compound is of Formula (Vb).
16. The particles according to claim 1 , wherein the compound is of Formula (Vc).
17. The particles according to claim 1 , wherein the compound is of Formula (Ve).
18. The particles according to claim 1 , wherein the compound is of Formula (Vg).
19. The particles according to claim 1 , wherein the compound is of Formula (Vh).
20. The particles according to claim 1 , wherein the compound is of Formula (VIb).
21. The particles according to claim 1 , wherein the compound is of Formula (VIIb).
22. The particles according to claim 1 , wherein the compound is of Formula (VIIc).
23. The particles according to claim 1 , wherein the compound is of Formula (VIIIb).
24. Particles comprising a compound selected from the group consisting of Formula (Ia), Formula (IIa), Formula (IIIa), Formula (IVa), Formula (Va), Formula (VIa), Formula (VIIa), and Formula (VIIIa);
wherein the particles have an average density greater than or equal to 90% of an ideal crystalline density of the particles; and
wherein:
Formula (Ia) is
Ni a Mn b Co c M 1 d O e (Ia)
wherein
M 1 is selected from B, Na, Mg, Al, Si, K, Ca, Sc, Ti, V, Cr, Fe, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ru, Ag, In, and combinations thereof,
0≤a≤1,
0≤b≤1,
0≤c<1,
a+b+c>0,
0≤d≤0.5,
a+b+d>0, and
1≤e≤5;
Formula (IIa) is
M 2 O g (IIa)
wherein
M 2 is selected from Co, Mn, Ni, and a combination thereof, and
0.9≤g≤2.6;
Formula (IIIa) is
M 3 i M 4 1−i O j (IIIa)
wherein
M 3 is selected from Ti, Mn, Zr, Mo, Ru, and any combination thereof,
M 4 is selected from B, Na, Mg, Ti, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Al, Sc, Y, Ga, Zr, Ru, Mo, and any combination thereof,
0≤i≤1, and
0.9≤j≤2.6;
Formula (IVa) is
Co 1−l M 5 l Al m O n (IVa)
wherein
M 5 is B, Na, Mn, Ni, Mg, Ti, Ca, V, Cr, Fe, Cu, Zn, Al, Sc, Y, Ga, Zr, Mo, Ru, and any combination thereof,
0<l<0.50,
0<m≤0.05, and
0.9≤n≤2.6;
Formula (Va) is
Co 1−p Mn p M 6 q O r (Va)
wherein
M 6 is at least one element selected from the group consisting of B, Na, Mg, Ti, Ca, V, Cr, Fe, Co, Ni, Cu, Zn, Al, Sc, Y, Ga, Zr, Ru, and Mo,
0<p≤0.30,
0≤q≤0.10, and
0.9≤r≤2.6;
Formula (VIa) is
(v)[M 7 O 2 ]·(1−v)[Co 1−σ M 8 σ O 2 ] (VIa)
wherein
M 7 is one or more elements with an average oxidation state of 4+;
M 8 is one or more monovalent, divalent, trivalent, and tetravalent elements;
0.01≤v<1.00,
0.5≤w≤1, and
0≤σ≤0.05;
Formula (VIIa) is
Ni x M 9 y M 10 z O α (VIIa)
wherein
M 9 is selected from Mn, Ti, Zr, Ge, Sn, Te, and any combination thereof,
M 10 is selected from Mg, Be, Ca, Sr, Ba, Fe, Ni, Cu, Zn, and any combination thereof,
0.7<x<1,
0<y<0.3,
0<z<0.3,
x+y+z=1, and
0.9≤α≤2.6;
Formula (VIIIa) is
M 11 γ Ni (1−γ)δ M 12 (1−γ)ε M 13 (1−γ)ζ O η (VIIIa)
wherein
M 11 is selected from Mn, Ti, Ru, Zr, and any combination thereof,
M 12 is selected from Mn, Ti, Zr, Ge, Sn, Te, and any combination thereof,
M 13 is selected from Mg, Be, Ca, Sr, Ba, Fe, Ni, Cu, Zn, and any combination thereof,
0≤γ≤0.3,
0.7<δ<1,
0<ε<0.3,
0<ζ<0.3,
δ+ε+ζ=1, and
0.9≤η≤2.6.
25. The particles of claim 24 , wherein the compound is represented by Formula (Ia).
26. The particles of claim 24 , wherein the particles comprise crystallites.
27. The particles of claim 26 , wherein the crystallites are greater in number than 50% of the particles.
28. The particles of claim 24 , wherein a first portion of the particles has a mean particle size between 1 and 50 μm.
29. The particles of claim 28 , wherein the first portion of the particles has a mean particle size between 10 and 20 μm.
30. The particles of claim 28 , wherein a second portion of the particles has a mean particle size between 1 and 5 μm.
31. The particles of claim 28 , wherein the first portion of the particles has a mean particle size between 10 and 20 μm, and the second portion of particles has a mean particle size between 1 and 5 μm.
32. The particles according to claim 24 , wherein the compound is of Formula (Ia).
33. The particles according to claim 24 , wherein the compound is of Formula (IIa).
34. The particles according to claim 24 , wherein the compound is of Formula (IIIa).
35. The particles according to claim 24 , wherein the compound is of Formula (IVa).
36. The particles according to claim 24 , wherein the compound is of Formula (Va).
37. The particles according to claim 24 , wherein the compound is of Formula (VIa).
38. The particles according to claim 24 , wherein the compound is of Formula (VIIa).
39. The particles according to claim 24 , wherein the compound is of Formula (VIIIa).