CLAIMS
1. A high capacity and high energy density Lithium-ion battery comprising lithium transition metal oxide, a negative electrode, a separator between the positive electrode and the negative electrodes, binders, electrolyte wherein the negative electrode comprises a metal-carbon composite material and the battery having a storage discharge capacity of at least 300 mAh g"1 and an energy density of at least 1000 W h kgv
2. The lithium ion battery of claim 1, wherein the cathode materials are selected from the group of Lithiated transition metal-oxides (LTMO, LiCoCh), NMC622 (LiNio.gMno.2Coo.2O2) orNMC71515 (LiNio.7Mnp.15Coo.15O2).
3. The lithium ion battery of claim 1, wherein the anode materials, metal-carbon composite material selected from the group of Sn, Si, Ge, Zn and Ni @carbon.
4. A high capacity and high energy density Lithium-ion battery of claim 1 comprising:

a) Lithiated transition metal-oxides (LTMO, LiCo02) as cathode, the cathode comprising a binder such as polyvinylidene difluoride (PVDF), Polytetrafluoroethylene (PTFE), poly sodium aery late (PAA); and a conductive additive such as super P carbon, acetylene black, activated carbon
b) slurry was prepared by adding a solvent such as NMP, ethanol and coated on a current collector such as carbon cloth, nickel foam, stainless steel, copper foil and the slurry-pasted substrates are used as electrodes
c) SnS@Carbon used as anode, commercial LTMO (ex. LiCo02) used as cathode and a separator between the anode and the cathode
d) LiPF4 in EC/DEC as the electrolyte

5. The high capacity Lithium-ion battery of claim 1, wherein the processing of
SnS@Carbon used as anode comprising:
a) Synthesis of (H2-salen) ligand by reacting salicylaldehyde and phenylenediamine
b) Synthesis of [Sn(salen)] complex by reacting the (l-h-salen) ligand and tin chloride in a distilled ethanol and acetonitrile (2:3 volume) using a stoichiometric amount
c) Subjecting the [Sn(salen)] complex to pyrolysis at 600 - 800 °C in Ar atmosphere to get Sn-decorated nitrogen-doped carbon leaf (Sn-NCL)
d) Dispersing Sn-NCL sample (0.5 g) in about 40 ml of distilled water by means of ultrasonication
e) Adding 1.5 g thiourea as a sulphide source to this dispersed solution and stirring for about 1-4 hours.
f) Transferring the solution into a Teflon-lined autoclave and kept in a muffle furnace for hydrothermal treatment at about 150 - 240 °C for about 12-24 hours.
g) After the heat treatment, the obtained SnS-decorated nitrogen-doped carbon leaf (SnS-NCL) sample was subjected to centrifugation, washed several times with ethanol and dried at about 100 °C in air.

6. The Lithium-ion battery of claim 1, having high storage discharge capacity in the range of about 300 mAh g"1 to about 500 mAh g'1.
7. The Lithium-ion battery of claim 1, having high energy density in the range of about 1000 W h kg"1 to about 2000 W h kg1.