Solid ion conductor compound, solid electrolyte including solid ion conductor compound, electrochemical cell including solid ion conductor compound, and method of preparing solid ion conductor compound
AssigneeSamsung SDI Co., Ltd.
InventorsSeoksoo Lee, Hyunseok Kim, Soyeon Kim
Life of this patent
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Abstract
A compound represented by Formula 1 and having an argyrodite-type crystal structure: LixM1vPSyM2wM3z Formula 1 In Formula 1, M1 is at least one metal element of Group 1 to Group 15 of the periodic table, except Li, M2 is SOn, M3 is at least one element of Group 17 of the periodic table; and 4≤x≤8, 0≤v<1, 3≤y≤7, 0<w<2, 0≤z≤2, and 1.5≤n≤5.
Claims26
A compound represented by Formula 1 and having an argyrodite-type crystal structure:
- LixM1vPSyM2wM3z Formula 1
- wherein, in Formula 1,
- M1 comprises Ag, Cu, Fe, Zn, Cr, Sn, V, or a combination thereof,
- M2 is SOn,
- M3 is at least one element of Group 17 of the periodic table, and
- 4≤x≤8, 0<v<1, 3≤y≤7, 0<w<2, 0≤z≤2, and 1.5≤n≤5.
A compound represented by Formula 5d, Formula 5e, Formula 6a, Formula 6b, Formula 6c, Formula 6d, or Formula 6e, and having an argyrodite-type crystal structure:
- (Li1-dAgd)aP(S1-e(SO4)e)bM3c, Formula 5d
- (Li1-dCud)aP(S1-e(SO4)e)bM3c, Formula 5e
- (Li1-dNad)aLifcP(S1+fc-e(SO4)e)b(M31-f(SO4)f)c, Formula 6a
- (Li1-dKd)aLifcP(S1+fc-e(SO4)e)b(M31-f(SO4)f)c, Formula 6b
- (Li1-dMgd)aLifcP(S1+fc-e(SO4)e)b(M31-f(SO4)f)c, Formula 6c
- (Li1-dAgd)aLifcP(S1+fc-e(SO4)e)b(M31-f(SO4)f)c, or Formula 6d
- (Li1-dCud)aLifcP(S1+fc-e(SO4)e)b(M31-f(SO4)f)c, Formula 6e
- wherein, in Formula 5c, Formula 5d, Formula 5e, Formula 6a, Formula 6b, Formula 6c, Formula 6d, and Formula 6e,
- each M3 is independently selected and is an element of Group 17 of the periodic table,
- a, b, and c are each independently selected, and 5≤a≤7, 4≤b≤6, and 0≤c≤2, and
- d, e, and f are each independently selected and 0<d<0.06, 0<e≤0.06, 0<f≤0.06, and 0<e+f≤0.06.
A compound represented by a formula of:
- Lia+fcP(S1+fc-e(SO4)e)b(F1-f(SO4)f)c, Lia+fcP(S1+fc-e(SO4)e)b(Cl1-f(SO4)f)c, Lia+fcP(S1+fc-e(SO4)e)b(Br1-f(SO4)f)c, or Lia+fcP(S1+fc-e(SO4)e)b(I1-f(SO4)f)c,
- wherein, in the formulae, 5≤a≤7, 4≤b≤6, and 0<c≤2;
- and 0<e<0.06, 0<f<0.06, and 0<e+f<0.06.
Dependencies are inferred from the claim text.